Mathematics High School

Nina has 2 cups of flour. However, this is only 1/4 of the amount of flour she needs for a bread recipe. How many cups of flour does the recipe call for?

Answers

Answer 1

She needs 8 cups of flour for her recipe.

Answer 2

Nina has 2 cups of flour.

However, 2 cups of flour is only 1/4 of the amount of flour she needs for a bread recipe.

Therefore, quantity of flour which Nina needs for a bread recipe is four times the present quantity

The cups of flour which Nina needs for a bread recipe = 2 / (1/4)

= 2 *4 cups

= 8 cups

Hope this helps..!!

Thank you :)

Related Questions

I need help with this equation! Carbon-14 has a half-life of 5730 years. Derek has a sample of a fossil that has 33mg of its original 100 mg of carbon-14. Find the decay constant, k, and use it to answer the questions that follow.
First use the formula P(t)=Ae ^{kt} , to find the decay constant, k

Answers

First all, the decay formula is [tex]P(t)=Ae^{-kt} [/tex]
where:
[tex]P(t)[/tex] is the remaining quantity after [tex]t[/tex] years
[tex]A[/tex] is the initial sample
[tex]t[/tex] is the time in years
[tex]k[/tex] is the decay constant

From the problem we know that [tex]A=33[/tex] and [tex]P=100[/tex], but we don't have the time [tex]t[/tex]; to find it we will take advantage of the half-life of the Carbon-14. If you have a sample of 100 mg and Carbon-14 has a half-life of 5730, after 5730 years you will have half of your original sample i.e. 50 mg. We also know that after [tex]t[/tex] years we have a remaining sample of 33mg, so the amount of the sample that decayed is [tex]100mg-33mg=67mg[/tex]. Knowing all of this we can set up a rule 3 and solve it to find [tex]t[/tex]:
[tex] \frac{100mg--\ \textgreater \ 5730years--\ \textgreater \ 50mg}{100mg--\ \textgreater \ (t)years---\ \textgreater \ 67mg} [/tex]
[tex] \frac{5730years--\ \textgreater \ 50mg}{(t)years---\ \textgreater \ 67mg} [/tex]
[tex] \frac{5730}{t} = \frac{50}{67} [/tex]
[tex]t= \frac{(5730)(67)}{50} [/tex]
[tex]t=7678.2[/tex]

Now that we know our time [tex]t[/tex] lets replace all the values into our decay formula:
[tex]33=100e^{-7678.2k} [/tex]
Notice that the constant [tex]k[/tex] we need to find is the exponent; we must use logarithms to bring it down, but first lets isolate the exponential expression:
[tex] \frac{33}{100} = e^{-7678.2k} [/tex]
[tex]e^{-7678.2k} = \frac{33}{100} [/tex]
[tex]ln(e^{-7678.2k} )=ln( \frac{33}{100} )[/tex]
[tex]-7678.2k=ln( \frac{33}{100} )[/tex]
[tex]k= \frac{ln( \frac{33}{100}) }{-7678.2} [/tex]
[tex]k=-0.000144[/tex]

We can conclude that the decay constant [tex]k[/tex] is approximately -0.000144

A right triangle has a leg of 13 cm and a hypotenuse of 21 cm. What is the length of the other leg? Round to the nearest tenth
A. 8.0 cm
B.16.5 cm
C. 24.7 cm
D. 272.0 cm

Answers

The other leg of the right triangle will be 16.5cm.

Legs of a right triangle:

The side which shares the common/neighboring border to the right angle in a triangle is called legs.

Pythagoras theorem:

It states that the sum of the areas of the two squares on the legs equals the area of the of the square on the hypotenuse.

According to the given question, we have

length of one leg of the right triangle is 13cm.

hypotenuse of the right triangle is 21 cm .

Let x be the length of the other leg.

Now, according to the Pythagoras theorem

We can write as

[tex](21)^{2} = x^{2} +(13)^{2}[/tex]

⇒ 441 = [tex]x^{2} +169[/tex]

⇒[tex]441-169 =x^{2}[/tex]

⇒ [tex]272 =x^{2}[/tex]

⇒ [tex]x = \sqrt{272}[/tex]

⇒[tex]x = 16.49[/tex] ≈ 16.5cm

Hence, the other leg of the right triangle will be 16.5cm.

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At combs store there is a 25% chance a customer enters the store within one minute of closing time. Describe the complementary event and find its probability

Answers

The complementary event is that a customer does not enter the store within one minute of closing, and the probability is 75%.

The complement is found by subtracting from 100%; 100-25 = 75%.

A used book store buys a hardback book for $1.50 and then sells it for $5. Over time, the store sells the same number of books it buys. The store manager can use the equation P(x)=5x−1.5x to determine the store's profit, P(x), where x is the number of books that the store sells. Which statement about the book store is true based on the profit equation?

A.The book store makes a profit of $5.00 for each hardback book that is sold.
B.The book store makes a profit of $3.50 for each hardback book that is sold.
C.The book store makes a profit of $4.50 for each hardback book that is sold.
D.The book store sells each hardback book for $3.50

Answers

Cost Price of book, C.P.=$1.50

Selling Price of book, S.P.=$5

PROFIT=S.P. -C.P.

So, Profit=$5-$1.50=$3.50

So, Profit=$3.50 on each book

Or, we are given P(x)= 5x-1.50x

Or, P(x)=3.50x

For each book, we must divide the profit P(x) by x, that is, number of books

[tex] \frac{P(x)}{x}=\frac{3.5x}{x} [/tex]

[tex] \frac{P(x)}{x}=\frac{3.5*1}{1} [/tex]

[tex] \frac{P(x)}{x}=3.5 [/tex]

So, Profit for each book sold is $3.50

Answer:Option C

Answer:

Step-by-step explanation:

im too smort

Type the correct answer in each box. If necessary, use / for the fraction bar(s). Richard has 3 times as many music CDs as Benny does. If Richard has y CDs, the number of CDs Benny has is given by the expression . If Richard has 30 CDs, Benny has CDs.

Answers

r= 3b

r=y

r=30 cd

b= 10 cds

Answer:

[tex]y=3x[/tex]

when Richard has 30 CDs, Benny has 10 CDs.

Step-by-step explanation:

Richard has 3 times as many music CDs as Benny does.

Let Benny has 'x' CD's.

If Richard has 'y' CDs, the number of CDs Benny has is given by the expression :

[tex]y=3x[/tex]

If Richard has 30 CDs, means y = 30

So, x will be => [tex]30=3x[/tex]

[tex]x=30/3=10[/tex]

So, when Richard has 30 CDs, Benny has 10 CDs.

Amy has 12 pairs of white socks, 2 pairs of gray socks, and 6 pairs of black socks in her drawer. if she takes two pairs without replacement, what is the probability that she will take a white pair and gray pair?

Answers

HI!
First of all, there are total 12 + 2 + 6 = 20 pairs of socks.
Probability of getting a pair of white socks the first time is 12/20.
Probability of getting a pair of gray socks without replacement, if first one was white, is 2/19
Therefore the probability that she will take a white pair and gray pair without replacement is 6/95 (I multiplied the two probabilities)
Let me know if there are any other questions!

A boat in calm seas travels in a straight line and ends the trip 16 km west and 50 km north of its original position. Find the direction of the trip to the nearest tenth of a degree.

Answers

Take the sin(∠boat)= side opposite the angle (50 km)/ (hypotenuse)
sin(∠boat)= 50/52.5
(take the invers sin of (50/52.5)
∠boat= 80.3° North West

ANSWER:
The boat's traveled 80.3° North West

Sue’s Corner Market has a markup of 60% on bottled water. If the market sells a bottle of water for $2, find the original amount that Sue pays.

Answers

Markup is the amount added to the cost price of goods to cover overhead and profit.

Sue’s Corner Market has a markup of 60% on bottled water.

Let us say original price was $x.

Now price after markup is $2.

So we can make an equation like:

original price + markup price = price after markup

x + 60% of x =2

[tex] x + 0.6x =2 [/tex]

[tex] 1.6x =2 [/tex]

dividing both sides by 1.6

x= 1.25

So original price was 1.25 dollars.

Answer:

1.25 dollars.

Step-by-step explanation:

help:/

Determine if the number is written in scientific notation. If not explain.
1. 4.8x100^7

No; it is not written as a number times a power of 10
yes; the number is written in scienfic notation
no; the first factor is not a number between 1 and 10

2. 5.1x10^-8
yes; the number is written in scienfic notation
no; the first factor is not a number between 1 and 10
no; it is not written as a number times a power of 10

Answers

The answers are the following:
1. 4.8x100^7 is not in scientific notation.
No; it is not written as a number times a power of 10. It should not be "times 100" because in scientific notation, the highest number to be expanded by the degree is 10.

2. 5.1x10^-8 is in scientific notation.
yes; the number is written in scienfic notation. This is because it has a base number and multiply to x10^-8 which is the exponent indicating that the expanded value is 0.000000051

Suppose that in a certain triangle, the degree measures of the exterior angles are in the ratio 2:3:4. If the largest interior angle measures y degrees, what is the value of y?

Answers

first you should calculate total of the ratios:
2+3+4=9
then divide 360 by 9 (because the total degrees of the exterior angles in polygon is 360)
[tex]360 \div 9 = 40[/tex]
at the end find the amount of the exterior angles:
[tex]2 \times 40 = 80 \\ 3 \times 40 = 120 \\ 4 \times 40 = 160[/tex]
the shortest exterior angle is 80 degrees
so it has the largest interior angle:
180-80=100
the answer is 100

Final answer:

To find the largest interior angle y in a triangle with exterior angles in the ratio 2:3:4, we use the fact that the sum of a triangle's exterior angles is 360° to find the value of each exterior angle, then deduce y as the supplement of the largest exterior angle, resulting in y being 20°.

Explanation:

To find the value of the largest interior angle y in a triangle where the exterior angles are in the ratio 2:3:4, we start by understanding that the sum of the exterior angles of any triangle is 360°.

This means that the exterior angles in this triangle are 2x, 3x, and 4x degrees, respectively, where x is a common multiple.

Given that the sum of these angles must be 360°, we can write the equation 2x + 3x + 4x = 360°, simplifying to 9x = 360° and solving for x gives us x = 40°.

The largest exterior angle is 4x, which equals 160°. Since the exterior angle is supplementary to the interior angle it shares a vertex with, the largest interior angle y is therefore 180° - 160° = 20°.

Thus, the value of y is 20°.

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Answers

Answer:
sqrt(14)

Explanation:
The absolute value of a complex number a+bi can be calculated as follows:
|a+bi| = sqrt(a^2 + b^2)
we have:
a = -4
b = -sqrt(2) i

Substitute with the values in the above equation to get the absolute value as follows:
|a+bi| = sqrt [(-4)^2 + (sqrt(2) i)^2] = sqrt(14)

Based on the abbreviations, translate the following ads into fully spelled-out sentences. The final sentence should state how many rooms each house probably has, not counting bathrooms. LOW CTM - 2 bdrm 1 ba. Qualifying Low monthly payments 555-834-3674 Norris Realty

Answers

low cash to mortgage, two bedroom one bedroom. Qualifying Low monthly payments
555-834-3674 Norris Realty

help !! Which represents the solution(s) of the graphed system of equations, y = x2 – 2x and y = –2x – 1?
a (1, –1)
b (0, 0) and (0, –1)
c (0, 0) and (2, 0)
d no solutions

Answers

B is the answer.
y = 0^2 - 2(0) = 0 (0, 0)
y = -2(0) - 1 = -1 (0, -1)

KAN SOMEBODY HEPLME #ONSANGRE #ON9INE3REY

Derek wrote the following paragraph proof for the Vertical Angles Theorem:

The sum of angle 1 and angle 4 and the sum of angle 3 and angle 4 are each equal to 180 degrees by the definition of supplementary angles. The sum of angle 1 and angle 4 is equal to the sum of angle 3 and angle 4 by the transitive property of equality. Angle 1 is equal to angle 3 _____________________.

Which phrase completes the proof?
by construction using a straightedge
by the definition of a perpendicular bisector
by the subtraction property of equality
by the vertical angles theorem

Answers

Hey there! :D

It's important to remember that vertical angles are congruent. They are angles that you could draw a line through the vertex, and it would create 2 more equal angles.

Also, the question even states that "Derek wrote the following paragraph proof for the vertical angles theorem."

So, the answer is 'the vertical angles theorem".

I hope this helps!
~kaikers

subtraction property of equality (i just took that test and got it right)

Each trip, a bus drops off more fans at a concert. On the first trip, the bus dropped off 30. On the 14th trip, which was the last one, the bus dropped off 95 fans. How many fans did the bus deliver to the concert in total

Answers

the answer is 875! I hope this helps

Answer: There are 875 fans the bus deliver to the concert in total.

Step-by-step explanation:

Since we have given that

On the first trip, the bus dropped off = 30

Here a = first term = 30

On the 14 trip, the last trip, the bus dropped off = 95

i.e. [tex]a_{14}=95[/tex]

So, the total number of fans the bus deliver to the concert is given by

[tex]S_{14}=\frac{n}{2}(a+a_n)\\\\S_{14}=\frac{14}{2}(30+95)\\\\S_{14}=7(30+95)\\\\S_{14}=125\times 7\\\\S_{14}=875[/tex]

Hence, there are 875 fans the bus deliver to the concert in total.

Uli wants to write the phrase “the difference of seven and a number squared” as an algebraic expression. She wrote out several expressions in the table. Which expression correctly represents the phrase?

Answers

7 - n^2 is your expression. Hope it helps! :) If you could vote my answer as the brainliest, that would be awesome! :)

Answer:

The Algebraic expression that correctly represents the phrase 'the difference between 7 and a number squared' is

= 7 - x²

Step-by-step explanation:

Let's represent the unknown number be represented as x

The unknown number is also squared = x²

Therefore, the Algebraic Equation correctly representing the phrase 'difference of 7 and a number squared' is

= 7 - x²

Oliver and Peter had the
same length of string. Oliver used 3
4 of
his string to tie a bundle of newspapers.
Peter used 6
8 of his string to tie a bundle
of magazines. Who used more string?
Draw a number line and write a
comparison to show your answer

Answers

They both used the same amount. 6/8 when simplified is the same as 3/4.

Answer:

Oliver and Peter both uses same length string.

Explanation:

Suppose length of rope or string = x meters

Oliver divide his rope into four equal parts

[tex] \frac{1}{4}, \frac{1}{4}, \frac{1}{4}, \frac{1}{4} [/tex]

Each part length is [tex] \frac{1}{4} [/tex]

NOw Oliver used 3 part of the string out of four parts

that means total used string is 3/4

Now peter also have same length of string = x meter

He divides the string eight equal parts and use the 6 parts out of 8

each part length is :[tex] \frac{x}{8} , \frac{x}{8} , \frac{x}{8} , \frac{x}{8} , \frac{x}{8} , \frac{x}{8} , \frac{x}{8} , \frac{x}{8} [/tex]

Use 6x/8

simplify the fraction 6x/8

divide by 2 both numerator and denominator

6x/8 = 3x / 4

So both uses same part of string.

WXYZ is an isosceles trapezoid with legs WX and YZ and a base XY. If the length of WX is 6x+5, the length of XY is 10x+4 and the length of YZ is 8x-3, find the value of x.

Answers

Answer: x = 4

Explanation:

An isosceles trapezoid has two opposite sides (the bases) parallel, and the two other sides (the legs) are of equal length.

So, since the two legs are of equal length, you only need to use the information of the two legs:

Leg WX: 6x + 5

Leg: YZ: 8x - 3

Leg WX = Leg YZ => 6x + 5 = 8x - 3

6x + 5 = 8x - 3

=> 8x - 6x = 5 + 3

=> 2x = 8

=> x = 8 / 2

=> x = 4

Find the product. (2 p + 7)(3 p - 9)
6 p^2 - 3 p - 63
6 p^2 + 3 p - 63
6 p^2 + 39 p - 63
6 p^2 + 3 p - 2

Answers

p^2(2*3) +p(2*(-9) +3*7) +7*(-9)
= 6p^2 +3p -63

The 2nd selection is appropriate.

How can you check to see if two ratios form a proportion? Explain the method you used to find the answer to the previous problem.

Answers

a/b=c/d if a*d=b*c

Ex 2/3=4/6 because 2*6=3*4

Answer:

Write a proportion using the ratios. Find the cross products. If the cross products are equal, then the ratios form a proportion.

Step-by-step explanation:

And airplanes at altitude change -370 ft over 7 minutes what was the mean change of altitude in feet per minute?

Answers

we have that
[the mean change of altitude]=[change in altitude]/[time]
[the mean change of altitude]=[-370]/[7]---------------> -52.86 ft/minute

the answer is -52.86 ft/minute (the negative sign means that the plane is descending)

Find the area of a circle with a circumference of \color{blue}{6\pi}6πstart color blue, 6, pi, end color blue.

Answers

By definition, the circumference of a circle is given by:
C = 2πR.
Where,
R: radius of the circle.
Substituting we have:
6π = 2πR
We cleared R:
R = (6π) / (2π)
R = 3
Then, look for the area of the circle which will be given by:
A = πR ^ 2
Substituting the values:
A = π (3) ^ 2
A = 9π units ^ 2
Answer:
The area of the circle is:
A = 9π units ^ 2

Carla sells hot coffee, cider and tea from a sidewalk cart near wall street in new york city. last month she sold $4,500 worth of product to 1,000 customers. she spent $800 on buying her beverages in bulk. her monthly costs are: utilities = $100, salary = $2,000, advertising = $0, insurance = $0, interest = $0, rent (cart) = $600, depreciation = $0. calculate carla's average sale per customer.

Answers

The average sale per customer for Carla is $4.50.

To find Carla's average sale per customer, we need to determine the total revenue and the total number of customers.

The average sale per customer is calculated by dividing the total revenue by the total number of customers.

Given:

- Total revenue for the month: $4,500

- Total number of customers for the month: 1,000

The average sale per customer is calculated as:

[tex]\[ \text{Average sale per customer} = \frac{{\text{Total revenue}}}{{\text{Total number of customers}}}. \][/tex]

Plugging in the given values:

[tex]\[ \text{Average sale per customer} = \frac{{4,500}}{{1,000}} = 4.5. \][/tex]

Thus, the average sale per customer for Carla is $4.50.

Question :

What does (r−c)(3) mean about George's new store?

Answers

subtract r from c to get 8x+10

replace x with 3

8(3) +10 = 34 which in hundreds is 3400 dollars

the answer is C

Look at the picture below // 99 points // PLEASEE HELPP

Answers

I'm pretty sure it's D, hope this helps, have an amazing day :)

Lets get started :)

We can divide the large polygon into 3 smaller known polygons
1 square and 2 rectangles

The dimensions of the square will be:
width: 3 units
length: 3 units

The dimensions of the 1st rectangle will be:
width: 4 units
length: 7 + 13 = 20 units

The dimensions of the 2nd rectangle will be:
width: 5 units
length: 13 units

The area formula of square is (side)²
A = (6)² = 36 units²

The area formula of a rectangle is (length x width)
A (1st) = 4 x 20
= 80 units²
A(2nd) = 5 x 13
= 65 units²

Now, we add all the areas to get the final area
Area total = 36 + 80 + 65
= 181 unit²

Your final answer will be option D

You are driving at an average speed of 50 miles per hour. You drive 22 hours, and you still need to drive another 175 miles. Which graph models how far you are from your destination at any point in time?

Answers

7650 i think that is the answer please correct me if that wrong

pls xd

I need help ASAP! will give Brainliest!
It's geomtery

Answers

Every line segment is an altitude, namely
BD, AB, BC for triangle ABC (angle B is a right-angle)
BD, AD are altitudes for triangle ABD
BD, DC are altitudes for triangle BDC
So in all, altitudes are
BD,AB, BC,AD,DC.

Using metric relations,
BD^2=AD*DC=5*7=35
=>
BD=sqrt(35)=5.916 (to 3 decimal places)

Hence the area of triangle ABC
Area=Base*Height/2 = (5+7)*sqrt(35)/2= 35.496 (to 3 decimal places)

What is the median of this data set?

Answers

Final answer:

The median of a data set with an even number of values is calculated by taking the average of the two middle values. For a data set with an odd number of values, the median is simply the middle value.

Explanation:

The median of a data set with an even number of values is calculated by taking the average of the two middle values. For example, if the data set is 6.8, 7.2, the median would be (6.8 + 7.2) / 2 = 7.

However, if the data set has an odd number of values, the median would simply be the middle value. For example, if the data set is 3, 5, 8, the median is 5.

It's important to note that the median is used to find the middle value of a data set and is often preferred over the mean when there are outliers in the data.

Learn more about median here:

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Answers

The domain of a(x) is all of R. The domain of b is the range where [tex]x-4 \geq 0, hence \ x \geq 4[/tex]. We can calculate the composition boa by changing in the expression for b, every x with a(x). Hence, boa(x)=[tex] \sqrt{(3x+1)-4} [/tex]=[tex] \sqrt{3x-3} [/tex]. Again for a function with a root to be defined, we need that the expression under the square root has to be positive. Hence, 3x-3[tex] \geq [/tex] 0.Thus, the set where this holds is [tex]3x \geq 3, x \geq 1[/tex]. This is also the domain of the function boa(x).

I have a Brainliest reward

Answers

The answer to the first question is the last option and the answer to the second question is Balance

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