The ratio of height between Joey and his girlfriend is 8:7. If Joey is 72 inches tall, how tall is his girlfriend in inches

Answers

Answer 1

Ratio is Joey/girlfriend = 8/7=8x/7x.
8x is height of Joey.
8x=72
x=72/8=9

7x is height of Joey's girlfriend.
7x=7*9=63 in.
Answer: 63 in.

Answer 2

Joey : Girlfriend = 8 : 7

Multiply the ratio by 9:
Joey : Girlfriend = 8x9 : 7x9
Joey : Girlfriend = 72 : 63

Answer: His girlfriend is 63 inches tall.

Related Questions

Sara loves to go hiking this weekend she hiked 3 miles on Monday 4 miles on Tuesdays and 3 miles on Thursday .last week Sara hiked 8 miles. How many more miles did Sara hike this week than last week

Answers

This week: 4+3+3 = 10
Last week: 8
Difference: 10 - 8 = 2
Sarah walked two more miles this week than last week.

Answer:

2 miles

Step-by-step explanation:

Sara loves to go hiking.

She hiked 3 miles on Monday 4 miles on Tuesdays and 3 miles on Thursday.

Last week Sara hiked 8 miles

This week sara hiked = Monday + Tuesday + Thursday

= 3 + 4 + 3

= 10 miles

Last week hiked = 8 miles

Difference in two week hiked by Sarah = 10 - 8

= 2 miles

So, Sarah hike 2 miles more than last week.

Calculate cos theta where theta is the angle between u and v

Answers

You need to upload the image if you want the answer.
However, I can explain how to solve the problem so that you can determine the angle.

cos theta = side opposite of theta divided by the hypotenuse.

Reminder that the hypotenuse is the side NOT touching the 90° angle.

Hope this helps! If not, upload an image of the drawing.

If you shift the linear parent function, f(x)=x, down 7 units what is the equation of the new function

Answers

To solve this problem you must apply the proccedure shown below:

1- You have that following parent function (the most basic function of the linear functions) given in the problem above:

f(x)=x

2- When you graph this parent function, you obtain the graph shown in the figure attached.

3- If you shift the linear parent function 7 units down, you have the following new function:

f(x)=x-7

4- The graph of the new function is shown in the second figure attached.

The answer is: f(x)=x-7

f(x)=x-7 is indeed the correct answer.just got it right

The real number 8.09 belongs to which set of numbers??

A-natural numbers

B-integers

C-irrational numbers

D-rational numbers

Answers

Hi! I believe it's D. rational numbers

Hope this helps!

Answer is: D - rational numbers

8.09 can be rewritten as 8 9/100, which in turn can be rewritten as 809/100. This is the ratio of two integers. So, 8.09 is rational.

Use double angle to rewrite 12sinxcosx

Answers

Final answer:

To rewrite 12sinxcosx using the double angle formula, multiply by (1/2) and use the formula for sin(2x) to obtain the answer of 12sin(2x).

Explanation:

To rewrite 12sin(x)cos(x) using the double angle formula, we need to know the formula for sin(2x) and cos(2x). The double angle formula for sine is sin(2x) = 2sin(x)cos(x), and for cosine it is cos(2x) = cos^2(x) - sin^2(x). Let's use these formulas to rewrite the expression:

12sin(x)cos(x) = 12 * (1/2) * 2sin(x)cos(x), since 1/2 is the value of cos^2(x) - sin^2(x).12 * (1/2) * 2sin(x)cos(x) = 6 * 2sin(x)cos(x).6 * 2sin(x)cos(x) = 12sin(2x). This is our final answer, using the double angle formula to rewrite the original expression.

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Final answer:

The expression 12sinxcosx can be rewritten as 6sin(2x) by using the double angle formula for sine.

Explanation:

The expression 12sinxcosx can be rewritten using the double angle formula for sine, which is sin(2a) = 2sina ⋅ cosa. By comparing this to the given expression, we can see that it is in the form of the right-hand side of the double angle formula, where a is equivalent to x. Therefore, the expression can be rewritten as 6sin(2x). Such double angle formulae are available for other trigonometric ratios as well.

A piggy bank contains the same number of quarters, nickels, and dimes. the coins total $4.40. how many of each type of coin does the piggy bank contain?

Answers

Let the number of each coin be n.

The total sum of these coins is $4.40. So we can write:

n Nickles + n Dimes + n Quarters = 4.40

0.05n + 0.10n + 0.25n = 4.40

0.40n = 4.40

n = 11

So this means, there are 11 coins of each type.

Answer: 11 of each type

Step-by-step explanation:

Simplify the expression below. 6n2 - 5n2 + 7n2

Answers

The answer to the question is
18n^2

The answer is 8n^2. You just simplify the expression.

In the circle below, radius mn = 1.4 m and mlmn = 52°. determine the length of arc ln. round your answer to the nearest tenth and use π = 3.14.

Answers

The arc length is given by:
Arc length=θ/360×π×d
θ=52
d=2×1.4=2.8 m
thus
Arc length will be:
52/360×3.14×2.8
=1.27 m

Answer:

1.27 is the answer

Step-by-step explanation:

A fair coin is tossed three time sin succession. the set of equally likely outcomes is {hhh,hht,hth,thh,htt,tht,tth,ttt}. find the probabilty of getting exactly zero tails

Answers

There are 8 possible outcomes so that means the probability will have a denominator of 8.

Now, there is only one of the eight outcomes that has zero tails.

Therefore the probability of getting zero tails after tossing a fair coin three times in succession is

[tex] \frac{1}{8} [/tex]

A bus covered the 400-km distance between points a and b at a certain speed. on the way back the bus traveled at the same speed for 2 hours and then increased the speed by 10 km/hour until it reached a, thus spending 20 fewer minutes on the return trip. how long did the return trip take?

Answers

Let the speed going to B be x, the time taken be t and distance is 400 km
xt=400,
On the way back, the 2x+(x+10)(t-7/3), where it was total time minus 2 hours already driven minus 1/3 of hour, the 20 minutes.
2x+xt-(7/3)x+10t-70/3=400
2x+400-(7/3)x+10t-70/3=400
thus
-(1/3)x+4000/x=70/3
multiplying through by x we get:
-(1/3)x^2-(70/3)x+4000=0
x^2+70x-12000=0
x=(1/2)(-70+/-sqrt52900)
x=80 kmp
thus:
it took 5 hours to make the first trip
on way back 2 hours at 80 kph which means he traveled for 160 km at this speed
2 h 40 min at 90 k/h=90*8/3=240 km

The speed going to B is x, the time t and the distance, 400 km.

xt=400, x kph and t in hours

on the way back, the 2x+(x+10)(t-7/3), where it was total time minus 2 hours already driven minus 1/3 of an hour, the 20 minutes.

2x+xt-(7/3)x+10t-70/3=400

2x+400-(7/3)x+10t-70/3=400, 400 cancels, t=400/x

-(1/3)x+4000/x=70/3

multiply by x

-(1/3)x^2-(70/3)x+4000=0

x^2+70x-12000=0

x=(1/2)(-70+/- sqrt 52900); sqrt term=230

x=80 kph

took 5 hours to go there

on way back 2 hours at 80 kph=160 km

2h40m at 90kph=90*8/3=240 km

They add to 400 km.

The return trip took 4h40m

PLEASE HELP. evaluate the radical 3√1000

Answers

3√1000 = 3*31.623 = 94.87

We can also do this by doing √9000 which is also 94.87

How many solutions are there for the system of equations shown on the graph?

No solution

One solution

Two solutions

Infinitely many solutions

Answers

If one line on top of the other then Infinitely many solutions.

If the lines are parallel then No solution.

Answer:

D. Infinitely many solutions

Step-by-step explanation:

We have been given an image of two lines on coordinate plane. We are asked to find the number of solutions for our given lines.

Upon looking at our given graph, we can see that both lines are same. Since both lines coincide, therefore, each point on the line will be solution of our given lines.

Therefore, our given lines will have infinitely many solutions and option D is the correct choice.

On a map, the distance between two cities is 2.4 inches. the two cities are actually 768 miles apart. on this same map, what would be the distance between two cities in miles that are 4.8 inches apart on the map?

Answers

2.99 inches. (To the nearest tenth would be 3)

Is the mean value theorem for integrals the same as the mean value thoerem for derivatives?

Answers

Yes. The two theorems are equivalent statements given that the fundamental theorem of calculus is true.

Answer:

a^2 + b^2 =C^2

Step-by-step explanation:

In a study of 38% of adults questioned reported that their health was excellent. a researcher wishes to study the health of people living close to a nuclear power plant. find the probability that when 11 adults are randomly selected, at most 3 are in excellent health

Answers

The probability that when 12 adults are randomly selected, 3 or fewer are in excellent health is 0.947.

To find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health, we can use the binomial distribution formula.

The formula for the probability of getting exactly k successes in n trials, with a probability of success p, is:

P(X = k) = (n choose k) * (p^k) * ((1-p)^(n-k))

In this case, n = 12, k = 3, and p = 0.38 (as 38% of adults reported excellent health).

So, the probability that 3 or fewer adults are in excellent health can be calculated as follows:

P(X <= 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

Let's calculate each term:

P(X = 0) = (12 choose 0) * (0.38^0) * (0.62^12) = 0.190P(X = 1) = (12 choose 1) * (0.38^1) * (0.62^11) = 0.342P(X = 2) = (12 choose 2) * (0.38^2) * (0.62^10) = 0.269P(X = 3) = (12 choose 3) * (0.38^3) * (0.62^9) = 0.146

Adding up these probabilities:

P(X <= 3) = 0.190 + 0.342 + 0.269 + 0.146 = 0.947

Rounded to three decimal places, the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health is 0.947.

The probable question may be:

In a study, 38% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant. Among 12 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that when 12 adults are randomly selected, 3 or fewer are in excellent health. Round to three decimal places.

What is 6.8 rounded to the nearest ones place?

Answers

6.8 ≈ 7

6.8 is nearer to 7 than to 6. so, 6.8 ≈ 7

↓
|------|------|------|------|------|------|-----|------|------|------|
6 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 7

Answer: 7

Find the first six terms of the sequence. a1 = -3, an = 2 ● an-1

Answers

The first term of the sequence is -3.

According to the formula each next term will be obtained by multiplying the previous term by 2.

So, next terms will be:

Second term = 2 x First Term = 2 x (-3) = - 6

Third term = 2 x (-6) = -12

Fourth term = -24

Fifth term = -48

Sixth term = -96

So, the sequence will be:

-3, -6, -12, -24, -48, -96 ...

triston is baking specity bread for the school bake sale. she has 10 1/2 cups of flour. the recipe for 1 loaf of bread calls for 2 1/3 cups of flour. How many whole loaves of bread can she make.

Answers

Triston can make a total of 4 loafs

Triston can make 4 whole loaves of bread using her 10 1/2 cups of flour. This was determined by dividing the total flour available by the flour required per loaf. Fractional or partial loaves are not counted.

To determine how many whole loaves of bread Triston can make, we need to perform a simple division of the total amount of flour by the amount required for one loaf.

First, let's convert the mixed numbers to improper fractions:

10 1/2 cups of flour = 21/2 cups of flour2 1/3 cups of flour = 7/3 cups of flour

Next, we will divide the total flour by the flour needed per loaf:

(21/2) ÷ (7/3) = (21/2) × (3/7) = (21 × 3) / (2 × 7) = 63/14 = 4.5 loaves

Since we can only make whole loaves, Triston can make 4 whole loaves of bread.

PLEASE ANSWER + BRAINLIEST!!!

What is the sum of the polynomials?

A. 10x^2 - 9

B. 11x^2 - x - 9

C. 11x^2 + x - 1

D. 12x^2 - 1

Answers

C is the correct answer

For what value of a does (1/9)^a+1 = 81^a+1 x 27^2-a?

Answers

The answer for a should equal to -3 in the equation given

Solution:
(1/9)^(a+1)=81^(a+1) x 27^(2-a), then the answer would be a=-3.

Answer:

-4

Step-by-step explanation:

Next time use the internet :)

Plz help!!!! Will mark brainliest!!
Ratios

Ms. Grande brought 24 apples and 18 oranges for a party after a class play. Find the ratio of the number of apples to the total number of fruits Ms. Grande bought.

There are 44 chicken and fish filets altogether in a freezer. There are 12 chicken filets. Which is the ratio of the number of chicken filets to the number of fish filets in the freezer?

There were 12 boys and 18 girls in a class. Then, 3 more boys joined the class and 2 girls left. What is the ratio of the number of boys to the number of girls in the class now?

Monica had $42 and Naomi had $18 at first. Monica then gave $6 to Naomi. What is the ratio of the amount of money Monica has to the amount of money Naomi has in the end?

Answers

1) 6:3
2) 11:3
3) 15:16
4) 3:2

Final answer:

To find the ratio of the number of apples to the total number of fruits, divide the number of apples by the total number of fruits. Simplify the ratio by dividing both numbers by their greatest common factor. For the ratio of chicken filets to fish filets, divide the number of chicken filets by the total number of filets. Simplify the ratio if possible. To find the ratio of boys to girls, determine the new number of boys and girls after some changes. For the ratio of money, calculate the amounts each person has and simplify the ratio.

Explanation:

To find the ratio of the number of apples to the total number of fruits, we divide the number of apples (24) by the total number of fruits (24 apples + 18 oranges = 42). This gives us a ratio of 24:42. We can simplify this ratio by dividing both numbers by their greatest common factor, which is 6. So the simplified ratio is 4:7.

For the second question, we need to find the ratio of the number of chicken filets to the number of fish filets. There are 12 chicken filets and a total of 44 filets in the freezer. So the ratio is 12:44. This can also be simplified by dividing both numbers by 4, giving us a simplified ratio of 3:11.

In the third question, we start with 12 boys and 18 girls. Then, 3 more boys join and 2 girls leave. So the new number of boys is 12 + 3 = 15, and the new number of girls is 18 - 2 = 16. The ratio of boys to girls is therefore 15:16.

In the fourth question, Monica has $42 and Naomi has $18. When Monica gives $6 to Naomi, Monica will have $42 - $6 = $36 left, and Naomi will have $18 + $6 = $24. The ratio of the amount of money Monica has to the amount of money Naomi has is 36:24, which can be simplified to 3:2.

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geometry question!! 50 POINTS

Answers

Volume ratio is 686/250 = 2.74
Area ratio is
250 yd^3
radii? First solid has vol 250 yd^3 = (4/3)*pi*r^3; find r^3 = --------------
(4/3)*pi

Then r^3 = 187.5 yd^3, and r = 5.724 yd

Second solid has vol 686 yd^3 .... Please find the radius R using precisely the same method.

Then calculate the ratio of the surface areas of the 2 solids:

Solid 1 surface area 4*pi* R^2
----------------------------- = --------------- where R is the radius of the larger
Solid 2 surface area 4*pi*r^2 solid and r is the radius of the smaller

R^2
This ratio comes out to ----------
r^2

Scale factor? Obviously one solid is larger than the other. We have to figure out by how much, by comparing volumes. Actually, we've already done that (see above). We could also determine how much larger R is than r. That, too, would give us the scale factor.

Answer:

2.74

Step-by-step explanation:

The diameter of Jupiter is 88,000 miles This is about 11.1 times the diameter of Earth What is the diameter of the earth

Answers

assuming that Jupiter and Earth are similar
linear sale factor=(diameter of Jupiter) /(diameter of earth)=11
thus:
diameter of earth=(diameter of Jupiter)/(linear scale factor)
=88000/11
=8000 miles
The diameter of earth is 8000 miles

You’re baking a circular cake for a party. Your cake can be any size you want. What will the radius of your cake be and how many slices will you be able to cut?

Answers

What will the radius of your cake be?

This is a problem of geometry. Given that the cake is circular, the greater the cake the greater the radius of it. So, as shown in the figure 1, the radius will be the distance from the center to any extreme point of the circle.

How many slices will you be able to cut?

The total area of a circle is given by:

[tex]A= \pi r^{2}[/tex]

We need to fin how many slices will be cut, so let's calculate the area of the circular sector which can be obtained simply applying rule of three, so:

[tex]A_{cs}= \pi r^{2}( \frac{\theta}{2\pi})= \frac{r^{2}\theta}{2}[/tex]

Let's name n the number of slices, if we divide the total area by n this result, each area must equal, then:

[tex] \frac{\pi r^{2}}{n}=\frac{r^{2}\theta}{n}[/tex]

Finally, we will be able to cut:

[tex]n= \frac{2\pi}{\theta}[/tex] Slices

help please, i don't understand it!!!!

Answers

[tex]V=\dfrac{4}{3}\pi r^3\ \ \ |\cdot\dfrac{3}{4}\\\\\pi r^3=\dfrac{3V}{4}\ \ \ \ |:\pi\\\\r^3=\dfrac{3V}{4\pi}\ \ \ |:r\\\\r^2=\dfrac{3V}{4\pi r^2}[/tex]

Substitute to S.A.

[tex]S.A.=4\pi r^2=4\pi\cdot\dfrac{3V}{4\pi r^2}=\dfrac{3V}{r}[/tex]

[tex]\dfrac{S.A.}{V}=\dfrac{4\pi r^2}{\frac{4}{3}\pi r^3}=\dfrac{3}{r}[/tex]

[tex]\dfrac{S.A.}{V}=1\to\dfrac{3}{r}=1\to r=3[/tex]

Answer: B

Find the value of x.
The polygons are similar, but not necessarily drawn to scale.

Answers

[tex] \dfrac{12}{40} = \dfrac{3}{x} [/tex]

Cross multiply:
[tex]12x = 3 \times 40[/tex]

Evaluate RHS:
[tex]12x = 120[/tex]

Divide both sides by 12:
[tex]x = 10[/tex]

Answer:

[tex]x=10 units[/tex]

Step-by-step explanation:

Given: The polygons ABCD and JKLM are similar.

To find: The value of x.

Solution: Since, the given polygons are similar, therefore using the similarity condition, we have

[tex]\frac{AD}{JM}=\frac{CD}{LM}[/tex]

Substituting the given values, we get

[tex]\frac{12}{40}=\frac{3}{x}[/tex]

On cross multiplying, we get

[tex]\frac{3\times40}{12}=x[/tex]

[tex]x=10 units[/tex]

Therefore, the value of x is 10 units.

Simplify i to the power 41

Answers

[tex]\bf \textit{recall that }i^4=1\\\\ -------------------------------\\\\ i^{41}\implies i^{40+1}\implies i^{40}\cdot i^1\implies i^{4\cdot 10}\cdot i\implies (i^4)^{10}\cdot i\implies 1\cdot i\implies i[/tex]

Answer:

It should be just "i"

What is the surface area of the prism? Include steps.

Answers

First things first. This is a rectangular prism, so it's faces are all rectangles.

Area of a rectangle: Area = Length x Height

- Rectangular Prism Dimensions:

Length: 3m
Width: 4m
Height: 2m

To calculate the surface area of a rectangular prism we first need to realize that he has 3 pairs of equal rectangles.

- The first pair (Photo 1):

Two rectangles with the same measure, so we can say that the area of this pair is: (L x H) x (L x H) or 2 x (L x H).

-> Area (Pair 1) = 2 x (3 x 2) = 2 x 6 = 12m^2

But if we will do the same thing to 3 different pairs, we can describe that:

- Total Surface Area (At):

At = 2 x (L x H) + 2 x (L x H) + 2 x (L x H)

-> At = 2 x ((L x H) + (L x H) + (L x H))

So now, just put the values inside de formula,

- Pair 1: Length = 3m ; Height = 2m

- Pair 2: Length = 4m ; Height = 2m

- Pair 3: Length = 4m ; Height = 3m

*I know that this pair doesn't have a "real Height" but this doesn't change anything when solving, you can consider the 4m as height and the 3m as length or vice versa, the order of the factors doesn't change the product.

-> At = 2 x ((3 x 2) + (4 x 2) + (4 x 3))
-> At = 2 x (6 + 8 + 12)
-> At = 2 x (26)

-> At = 52 m^2

On average, Scott drinks ½ of a 6-ounce glass of water in ⅔ hour. How much water does he drink in an hour?
a) 0.75 ounces b) 2 ounces c) 4.5 ounces d) 9 ounces

Answers

1/2 a 6 ounce glass is 3 ounces. He drinks 3 ounces in 2/3 of an hour.

3/2 = 1.5. He drinks 1.5 ounces in one third of an hour. 1.5 * 3 = 4.5

C. 4.5 ounces in one hour

Use the table to determine the following probabilities. The probability that a randomly chosen person from this group has type B is . The probability that a randomly chosen person from this group has type AB is . The probability that a randomly chosen person from this group has type B or type AB blood is .

Answers

Use the table to determine the following probabilities.

The probability that a randomly chosen person from this group has type B is 3/25

The probability that a randomly chosen person from this group has type AB is 1/25

The probability that a randomly chosen person from this group has type B or type AB blood is 4/25

The probability that a randomly chosen person is:

first person: 3/25

second person: 1/25

third person: 4/25

Probability

Use the table to determine the following probabilities.

The probability that a randomly chosen person from this group has type B is 3/25.

The probability that a randomly chosen person from this group has type AB is 1/25.

The probability that a randomly chosen person from this group has type B or type AB blood is 4/25.

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how did slave labor during to the punic wars affect small farmers. it hurt them because large Farms who used slaves as laborers couldn't sell products cheaperit hurt them because the cost of slaves had increased and they could no longer afford themit helped them because they were able to buy more slaves and increase their estatesit helped them because they were able to devote energy to selling products as well as growing them Why are vestigial structures considered critical evidence of evolution? Find the coordinates of the image after a translation of the figure below using (x, y) (x + 3, y + 2).A'( a1, a2)B'( a3, a4)C'( a5, a6)D'( a7, a8) express 0.41 as a fraction in simplest form What can be interpreted from the graph? A set of weights includes a 4 lb barbell and 6 pairs of weight plates. Each pair of plates weighs 20 lb. If x pairs of plates are added to the barbell, the total weight of the barbell and plates in pounds can be represented by f x( ) = 20x + 4. What is the range of the function for this situation? Please explain. In arabidopsis, a mutation causing the b-class genes to be non-functional will result in the organ identity of the four whorls (from the outside to the inside) to be: When normal microbiota become pathogenic and produce disease they are called opportunistic pathogens? Recall that your hypothesis is that these values are the fraction of atoms that are still radioactive after n half-life cycles. Record in the appropriate blanks. Which one of the following equations encompasses Boyle's Law, Charles's Law, and the relationship between pressure and temperature when the volume is constant? A.P = F/A B.P1V1 = P2V2 C.V1/T1 = V2/T2 D.PV = nRT You are at a football game with your friends, though you aren't a football fan. nonetheless, when "the wave" comes your way, you stand up and take part. afterward, you feel surprised that you did such a silly thing that you don't really even enjoy. a sociologist explains that you were influenced by the behavior of those close to you, which is called ________ theory. a plant forms new tissue at the tips of its roots and stems. this new tissue growth is a growth is a direct result of what The role of the pancreas, liver, and gallbladder is to ______. use enzymes and bile to break down food and extract its nutrients break down starch clear the system of any toxins remove liquid from the stomach Write an algebraic expression for the word expression The sum of 15 and the product of 5 and v use parentheses What roles did the assassination of francis ferdinand and the existence of prior military plans play in leading quickly to the outbreak of world war i? Which plans help people prepare for and respond to an emergency? Check all that apply. response plan evacuation plan government plan containment plan reconstruction plan A group of researchers studying the effects of alcohol on the overall health of urban adults asked respondents whether they drank alcohol during the past month. in this instance, the researchers were collecting _____ data. When mrs stanning is killed at the beginning how do the characters learn the news answers? A. They hear the news over the radioB. They learn of it when Sergeant Trotter gathers the suspects togetherC. They discover it when they hear screaming coming from the cellarD. They find out after the snow melts What was President Richard Nixon trying to avoid when he claimed executive privilege during the Watergate scandal? A. admitting that he knew about the break-in to prosecutors B. handing over secret tapes of Oval Office conversations to prosecutors C. handing over papers gathered by the FBI to prosecutors D. handing over videotapes from Democratic Headquarters to prosecutors Identify the brnsted base in the forward reaction hpo2 4 (aq) + hno3(aq) no 3 (aq) + h2po 4 (aq). 1. h2po 4 (aq) 2. hno3 3. hpo2 4 4. no 3