Devaughn's age is three times Sydney's age. The sum of their ages is 84 . What is Sydney's age?

Answers

Answer 1

the answer is 21 years old


Related Questions

Which inequality represents the graph below?

Answers

the answer is x > -2

x is greater then -2 and that is the 3 one


simplify (7^3)^8 its a question i dont understand what to do please help asap

Answers

Do (7x7x7) and multiply that product 8 times, so y x y x y x y x y x y x y x y

Which logarithm equation is equivalent to the exponential equation below?
3^c=27

Answers

Answer:

log(bsae(3))27=c

Step-by-step explanation:

a p e x

The logarithm equation is equivalent to the exponential equation is c = log₃27

What is logarithm?

A logarithm is the power to which a number must be raised in order to get some other number.

Given that, exponential equation, [tex]3^{c}[/tex]=27

By the exponential form of logarithm:

[tex]x^{a} =m[/tex] then logarithm form is a = logₓ m

Therefore,

[tex]3^{c}[/tex]=27

Taking logarithm both sides,

[tex]3^{c}[/tex]=27

c = log₃27

Hence, the logarithm equation is equivalent to the exponential equation is c = log₃27

Learn more about logarithm, click;

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What is the value of "k" in the function f(x) = 112 - kx if f(-3) = 121

Answers

If f(x)=112 -kx and f(-3)= 121, that means

112-k(-3)=121

112+3k=121

3k=9

k=3

The elevation of the basement floor in a building is -14 ft. The elevation of the roof is 36 feet. What is the distance from the basement floor to the roof? A) -50 ft Eliminate B) -24 ft C) 24 ft D) 50 ft

Answers

The answer would be D) 50, because you would have to add 14+36 which equals 50

4x-10+14+7x-10x+2
I just want to make sure I got it right

Answers

The answer is -9x +16

Combine like terms:

4x, 7x, -10x

-10, 14, 2

4x + 7x - 10x = x

-10 + 14 + 2 = 6

6 + x should be the correct answer.

What is equation of the following line ?

Answers

Answer:

B is your best Bet

Step-by-step explanation:


for this problem, you would have to do B because thats the best bet compared to the other answers


What interest rate per annum is a fund paying its clients if the third to the last payment of a depositor became Php 1,040.40 from an initial savings payment of Php 1,000.00?

Answers

Answer: The rate of interest per annum is 1.3%.


Step-by-step explanation:

Given  Principal P= $1000

time period n=3

Amount A=$1040,40

To find rate of interest per annum r

We know that

[tex]A=P(1+\frac{r}{100} )^3\\\Rightarrow\ 1040=1000(1+\frac{r}{100})^3\\\Rightarrow\ 1.040=(1+\frac{r}{100})^3\\\text{taking log on both sides}\\log(1.040)=3log(1+\frac{r}{100})\\\Rightarrow0.039=3log(1+\frac{r}{100})\\\Rightarrow0.013=log(1+\frac{r}{100})\\\\\Rightarrow\ e^{0.013}=(1+\frac{r}{100})\\\Rightarrow\ 1.013=(1+\frac{r}{100})\\\Rightarrow\ \frac{r}{100}=1.013-1=0.013\\[/tex]

⇒  r = 1.3%.

Solve the equation for y
[tex] \frac{2}{5}x + y = 3[/tex]

Answers

multiply both sides of the equation by 3.

2x+3y=9

move variable to the right side and change its sign

2x=9-3y

divide both sides of the equation by 2

x=9/2-3/2y

The volume ( v) of a gas in a container at a constant temperature varies inversely as the pressure (p). If the volume of a gas is 24 cubic centimeters when the pressure is 16 pounds, what is the volume under a pressure of 30 pounds?
a) 45 cubic cm b) 20 cubic cm c) 12.8 cubic cm

Answers

Answer : C) 12.8 cubic cm

The volume ( v) of a gas in a container at a constant temperature varies inversely as the pressure (p)

If y is  inversely proportional to x then [tex]y=\frac{k}{x}[/tex]

where k is constant of proportionality

v is  inversely proportional to p then [tex]v=\frac{k}{p}[/tex]

the volume of a gas is 24 cubic centimeters when the pressure is 16 pounds

Given : v= 24  and p = 16. We need to find out k

[tex]24=\frac{k}{16}[/tex]

Multiply by 16 on both sides

k = 384

Now we find out the volume under a pressure of 30 pounds

[tex]v=\frac{384}{30}[/tex]

[tex]v=\frac{128}{10}[/tex]= 12.8 cubic cm

Under a pressure of 30 pounds, the gas would occupy a volume of 12.8 cubic centimeters, as determined by applying Boyle's law, which states that volume and pressure are inversely proportional in conditions of constant temperature.

The volume (v) of a gas in a container at a constant temperature varies inversely as the pressure (p). This is a demonstration of Boyle's law, which states that pressure and volume are inversely proportional (P = k/V) when temperature is held constant. To find the new volume when the pressure changes, we can set up a proportion based on the original conditions provided: 24 cm³ at 16 pounds pressure. We set the initial volume and pressure as 24 cm³ and 16 lbs, respectively, and then solve for the new volume when the pressure is 30 lbs.

To find the volume under a pressure of 30 pounds, we use the equation:

V1 * P1 = V2 * P2

Where V1 is the original volume, P1 the original pressure, V2 the new volume, and P2 the new pressure. Plugging in our known values:

24 cm³ * 16 lbs = V2 * 30 lbs

Solving for V2, we get:

V2 = (24 cm³ * 16 lbs) / 30 lbs

V2 = 384 cm³ / 30 lbs

V2 = 12.8 cm³

Therefore, under a pressure of 30 pounds, the gas would occupy a volume of 12.8 cubic centimeters.

Pls help, pls just only tell me how to solve

Answers

To find f(2), look and see where the line crosses the Y axis, when The line is on X 2.


The line is on Y = -2, so the answer would be -2.

This is confusing. Someone help me please

Answers

1 a) Yogurt : Orange Juice : milk

      50 : 100 : 250

      (50 : 100 : 250 ) / 50

  ans=       1  :   2    :     5

b)  1 l = 1000 ml  of milk

      so  1000/250    = 4

       ans= 4 regular smoothies.

 c)   3 regular and 1 small

        (50 : 100 : 250 ) *3  +    (50 : 100 : 250 ) / 2

=  (150 : 300 : 750 ) +  (25: 50: 125)

ans =  175 ml yogurt, 350 ml orange juice, 875 ml milk          

     

Help me pls before the teacher notices

Answers

9) [tex]3 + 5n = 1 + 8n + 2[/tex]  | subtract 5 on both sides, and solve 8n and -5n

[tex]3 = 1 + 3n + 2[/tex]  | combine like terms, add 2 and 1

[tex]3 = 3n + 3[/tex]  | subtract 3 on both sides, and solve 3 and -3

[tex]0 = 3n[/tex]  | divide by 3n

[tex]0 = n[/tex]  | final answer


10)  [tex]5x + 12 = 4x + 6[/tex]  | subtract 4x on both sides, solve -4x and 5x

[tex]x + 12 = 6[/tex]  | subtract 12 on both sides, solve -12 and 6

[tex]x = -6[/tex]  | final answer


11)   [tex]-8x - 4 = 7 (-2 - 4x) + 4x[/tex]  | distribute 7 into the parentheses

[tex]-8x - 4 = -14 - 28x + 4x[/tex]  | combine like terms

[tex]-8x - 4 = -14 - 24x[/tex]  | add 8x on both sides, and solve 8x and -24x

[tex]-4 = -14 - 16x[/tex]  | add -14 on both sides, and solve 14 and -4

[tex]10 = -16x[/tex]  | divide by -16 on both sides, and solve

[tex]-0.625 = x[/tex]  | final answer



12)   [tex]16 - 2n = - 8 + 4 (n - 3)[/tex]  | distribute 4 into the parentheses

[tex]16 - 2n = -8 + 4n - 12[/tex]  | combine like terms

[tex]16 - 2n = 4n - 4[/tex]  | add 2n on both sides, and solve 2n and 4n

[tex]16 = 6n - 4[/tex]  | add 4 on both sides, and solve 4 and 16

[tex]20 = 6n[/tex]  | divide by 6 on both sides, and solve

[tex]3.33333 = n[/tex] | final answer (repeated)



13)  [tex]-6 (3 - 6r) = -18 + 4r[/tex]  | distribute -6 into the parentheses

[tex]-18 + 36r = -18 + 4r[/tex]  | subtract 4r on both sides, solve 36r and -4r

[tex]-18 + 32r = -18[/tex]  | add -18 on both sides, solve -18 and 18

[tex]32r = 0[/tex]  | divide by 32 on both sides, and solve.

[tex]r = 0[/tex]  | final answer



14)   [tex]4 (3b - 1) = 9 - b[/tex]  | distribute 4 into the parentheses

[tex]12b - 4 = 9 - b[/tex]  | add -b on both sides, solbe 12 and b

[tex]13b - 4 = 9[/tex]  | add -4 on both sides, solve 9 and 4

[tex]13b = 13[/tex]  | divide 13 on both sides, solve

[tex]b = 1[/tex]  | final answer



15)   [tex]-6x + 7 (1 - x) = -4 (x - 4)[/tex]  | distribute 7 into parentheses

[tex]-6x + 7 - x = -4 (x - 4)[/tex]  | distribute -4 into the parentheses

[tex]-6x + 7 - x = -4x + 16[/tex]  | combine like terms

[tex]-5x + 7 = -4x + 16[/tex]  | add -4x on both sides, solve -5x and 4x

[tex]-x + 7 = 16[/tex]  | subtract 7 on both sides, solve 16 and -7

[tex]-x = 9[/tex]  | divide by -1 on both sides, solve

[tex]x = -9[/tex]  | final answer



16)   [tex]5 - (8v + 5) = -4 (1 + 3v)[/tex]  | distribute the - and -4 into the parentheses

[tex]5 - 8v - 5 = -4 - 12v[/tex]  | combine like terms

[tex]10 + 8v = -4 - 12v[/tex]  | add 12v on both sides, solve 12v and 8v

[tex]10 + 20v = -4[/tex]  | subtract 10 on both sides, solve -4 and -10

[tex]20v = - 14[/tex]  | divide 20 on both sides, and solve

[tex]v = -0.7[/tex]  | final answer


17)   [tex]-8 (4 + 4n) = 8 (n + 6)[/tex]  | distribute -8 and 8 into the parentheses

[tex]-32 - 32n = 8n + 48[/tex]  | add -32n to both sides, solve 32n and 8n

[tex]-32 = 40n + 48[/tex]  | subtract 48 on both sides, solve -32 and -48

[tex]-80 = 40n[/tex]  | divide -80 on both sides, and solve

[tex]-2 = n[/tex]  | final answer

UNDER CONSTRUCTION (I WILL EDIT WHILE YOU RECIEVE THE ANSWERS)

How to Get Answer for Number 9:

3+5n = 1+8n+2

5n+3=(8n)+(1+2)(Combine Like Terms)

5n+3=8n+3

Step 2: Subtract 8n from both sides.

5n+3−8n= 8n+3−8n

−3n+3=3

−3n+3−3=3−3

−3n=0

Answer: n = 0

[tex]\frac{-3n}{-3} =\frac{0}{-3}[/tex]


10.

5x + 12 − 4x = 4x + 6 − 4x

x + 12 = 6

x + 12 − 12 = 6 − 12

Answer: x = −6

11. Answer is also x = 0

(More answers will come as edited)

Bobby is earning money for a new radio. He is paid $4.00 for each car he washes and $1.00 for each bag of leaves he rakes. If he washes 7 cars and fills 10 bags of leaves, how much money will he earn?

Answers

He washes 7 cars and gets $4.00 for each one :

So it's the number of cars times the money he gets for each one - 7 times 4 = 28


He fills 10 bags of leaves and gets $1.00 for each bag:

So it's the number of bags times the money he gets for each one - 10 times 1 = 10


Than you add the money from the cars to the money of bags : $10 + $28 =

$38 total


Answer: $38.00



why; live

What is the slope of the line with the equation of y=3/4x that passes through the point (2,1)?

A) 1
B) 2
C) 3/4
D) 4/3
E) 3

Answers

C

the equation of a line in ' slope- intercept form ' is

y = mx + c ( m is the slope and c the y-intercept )

y = [tex]\frac{3}{4}[/tex] x is in this form

with slope m = [tex]\frac{3}{4}[/tex] → C


The slope of the line is  [tex]m=\dfrac{3}{4}[/tex].

Given,

Equation of line is,

[tex]y=\dfrac{3}{4} x[/tex].

The line is passes through point,(2,1) .

We know that the slope form of equation is,

[tex]y=mx+c[/tex]

here m is the slope of the line and c is its y intercept.

On comparing the given equation of line with the general equation we get,

[tex]m=\dfrac{3}{4}[/tex].

Hence the correct option is C.

For more details on slope follow the link:

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Write 337,060 in expanded form using exponents

Answers


1. expand using place value.

337,060 = 300,000 + 30,000 + 7,000 + 000 + 60 + 0


Next, we will use exponents:

300,000 = 3 * 10^5

30,000 = 3 * 10^4

7,000 = 7 * 10^3

000 = 0 * 10^2

60 = 6 * 10

0 = 0 * 10^0


then after combing these exponents, we can write the number as:

337,060 = 3 * 10^5 + 3 * 10^4 + 7 * 10^3 + 0 * 10^2 + 6 * 10 + 0 * 10^0


Finally, removing the meaningless zeroes, we would end up with:

337,060 = 3 * 10^5 + 3 * 10^4 + 7 * 10^3 + 6 * 10


A part of a line with endpoints on both ends is a(n):

Answers

I believe it's a segment.

on Saturday nikki and tyler walked to the local farmers market nikki bout 8 apples for $6 dollars and tyler brought 3 fewer apples than nikki how much did tyler spend on apples

Answers

On Saturday Nikki and Tyler walked to the local farmers market Nikki bought 8 apples for $6 dollars and Tyler brought 3 fewer apples than Nikki. How much did Tyler spend on apples?​

Tyler brought 8 apples - 3 apples = 5 apples.​

​To calculate the price of 5 apples we have to establish a proportion :

If 8 apples cost $6​

Then 5 apples will cost $X​

​X = 5apples * $6/8apples = $3.75

Answer : Tyler spent on apples $3.75

​Hope this helps!​​​​

[tex]\textit{\textbf{Spymore}}[/tex]​​​​​​​

what is the missing length of the square

Answers

a = 7

Because we are looking for the area we would times the length times width. What times 6 would be equal to 42? 7!

It would be 7 in because 6 x 7 =42

It takes 19 minutes to get from Yermin’s house to the beach. If she has traveled for 5 minutes already, how many more minutes will it be until she reaches the beach?

Answers

it will be 14 more minuted because she has completed 5/19 minutes it takes to reach the beach.. we can get this answer by taking the total number of minuted to get to the beach (19) and subtract the number of minutes she has already walked (5)..... our answer is that she has 14 minutes left till she reaches the beach.

Answer

It is Going To Take 14 Minutes

what's 347 times 987?

Answers

the answer is 342,489

342,489 is your answer.

The inequality x _> -5

Answers

jjjjjjjjjjjjjjjjjjjjjjjjjjjj

If 5/6 gallon of paint covers 1/4 of the house, then how much paint is needed for the entire house?

Answers

20/24 so less than 4 gallons

25/6 hope this helps

Longfield is at an elevation of -144 1/2 feet. Smallville is 4 times farther below sea level than Longfield.
What is the Smallville’s elevation, in feet? The elevation of Smallville is _____feet.
Show me the work please.

Answers

Final answer:

The elevation of Smallville is calculated by multiplying the elevation of Longfield by 4. Longfield's elevation is -144 1/2 feet, which is equivalent to -289/2 as an improper fraction. Multiplying this by 4 gives the elevation of Smallville as -578 feet.

Explanation:

To find Smallville's elevation, we first take the elevation of Longfield, which is -144 1/2 feet below sea level. Since Smallville is 4 times farther below sea level than Longfield, we have to multiply the elevation of Longfield by 4.

First, convert -144 1/2 to an improper fraction: -144 1/2 = -289/2.

Now, multiply by 4:

(-289/2) × 4 = -289 × 2 = -578 feet

So the elevation of Smallville is -578 feet below sea level.

Thirty is five minus the product of five and a number.find the number

Answers

5x-5=30

Add 5 to both of the sides

5x=35

Divide 5 to both of the sides

X=7

Hey coffee merchant want to make 6 pounds of a blend of coffee costing five dollars per pound. The blender is made it and using a six dollar per pound grade at coffee and a three dollar per pound grade of coffee. how many pounds of each of these grades should be used?

Answers

uhhhhh, your question seems a bit unclear. could you make it a bit more readable?

A medium can of tomato juice costs $0.92 and contains 46 ounces of tomato juice. A large can of tomato juice costs $3.60 and contains 144 ounces of tomato juice. Which can of tomato juice the lower unit price? How much lower?

Answers

Answer:

The medium-sized can is the cheaper by the oz, and is $0.005 per oz. cheaper.

Step-by-step explanation:

Medium can:  $0.92/(46 oz) = $0.020/oz

Large can:   $3.60 / (144 oz) = $0.025/oz

Surprisingly, the medium can price per oz. is lower than that of the large can.  The difference is $0.005 per oz.


The medium can of tomato juice has the lower unit price at $0.02 per ounce, which is $0.005 lower per ounce than the large can's unit price of $0.025 per ounce.

To determine which can of tomato juice has the lower unit price, we need to calculate the cost per ounce for each can. For the medium can, we divide the cost by the number of ounces:

Medium can unit price = $0.92 / 46 ounces = $0.02 per ounce

For the large can, we perform a similar calculation:

Large can unit price = $3.60 / 144 ounces = $0.025 per ounce

The medium can has a lower unit price of $0.02 per ounce compared to the large can's unit price of $0.025 per ounce. The difference in unit price is $0.025 - $0.02 = $0.005, or half a cent per ounce.

a paper coffee filter has a radius of 6 centimeters and a slant of height of 12 centimeters. find the surface area of the filter. round your answer to the nearest whole number.

Answers

Using the formula πrl +πr²
[tex]\pi = 3.142[/tex]
[tex]l = 12cm[/tex]
surface area of the filter which is in form of a right cone is πrl+πr²

[tex] (3.142 \times 6 \times 12) + (3.142 \times {6}^{2}) [/tex]
=339.336
=339cm² to nearest cm

Final answer:

The surface area of the paper coffee filter with a radius of 6 centimeters and a slant height of 12 centimeters is approximately 339 square centimeters when rounded to the nearest whole number.

Explanation:

Finding the Surface Area of a Coffee Filter

To find the surface area of the paper coffee filter, we need to consider it as a part of a cone because a coffee filter is shaped like a cone with a circular base. The surface area of a cone is calculated by the formula Surface Area = πr(r + l), where r is the radius and l is the slant height. Given that the radius of the coffee filter is 6 centimeters and the slant height is 12 centimeters, the formula should be filled in as follows:

Radius (r) = 6 cm

Slant Height (l) = 12 cm

The calculation will then be:

Surface Area = π x 6 cm x (6 cm + 12 cm)

Surface Area = π x 6 cm x 18 cm

Surface Area = π x 108 cm²

Surface Area ≈ 3.14159 x 108 cm²

Surface Area ≈ 339.29 cm²

Rounding to the nearest whole number:

Surface Area ≈ 339 cm²

The surface area of the paper coffee filter is approximately 339 square centimeters.

Find the area of the large rectangle by finding the area of the two small rectangles and adding them.

Answers

The total area is 21 (15+6=21)

Answer:

Area of the given figure is 21 square units

Step-by-step explanation:

Area of the rectangle formula is length times width

Area of the top rectangle  

Length = 5 and width = 3

So area of top rectangle =5 times 3 is 15 square units

Area of bottom rectangle  

length =2 and width =3

So area of bottom rectangle is 2 times 3 is 6 square units

Total area =[tex]15+6= 21[/tex] square units

Jasmine went to the store and bought a pair of shoes for $44 and seven pairs of pants. He spent $96 in total. How much did each t shirt cost? I will give you 100 points

Answers

First, subtract 44 from the 96. You get 52. Then, divide 52 by 7 to figure out what each shirt costs. The answer is 52/7, or $7.43. She spent 7 dollars and 43 cents on each shirt.


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