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satela [25.4K]
3 years ago
10

The variables x and y vary directly. Use the values to find the constant of proportionality, k. Then write an equation that rela

tes x and y.
y=72; x=3
Mathematics
2 answers:
den301095 [7]3 years ago
7 0
Y/X=? Basically saying that 72 divided by 3 is what
Travka [436]3 years ago
3 0

y = kx

Replace y and x to solve for k:

72 = 3k

Divide both sides by 3:

k = 24

Now replace k with 24:

y = 24x

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What is the mean and median of the data<br><br> 4.7,8.51,6.5,7.42,9.64,7.2,9.3
Savatey [412]

Answer:Median=7.42

Mean=7.61

Step-by-step explanation:

4 0
2 years ago
(-4)(-4) use an exponent to rewrite the expression
DiKsa [7]
For this case we have the following expression:
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5 0
3 years ago
Find the area of the triangle
BARSIC [14]

Answer:

The Area of Δ ABC = 219.13

Step-by-step explanation:

<em>The hard part about this problem is finding the area without the height</em>

The formula to do this is Area = \sqrt{S(S-A)(S-B)(S-C)}

A, B, C represent the sides

S represents \frac{1}{2} (A + B + C)

In this equation, we will make the base be A, and the other two sides will be B and C

<u>Sides B and C are the same length</u> because they meet at a 90° angle

Lets plug the numbers into the variables

A = 28

B= 21

C= 21

<u>Remember:</u> S represents  \frac{1}{2}  (A + B + C)

S =  \frac{1}{2} (28 + 21 + 21)

S =  \frac{1}{2} (70)

S = 35

<em>Lets plug the numbers into the Area Formula now!</em>

Area = \sqrt{35(35 - 28)(35 - 21)(35 - 21)}

According to the order of operations, we need to do the calculations in parentheses <u>first</u>

35 - 28 = 7

35 - 21 = 14

35 - 21 = 14

14 x 14 x 7 = 1372

1372 x 35 = 48020

\sqrt{48020} = 219.13

The Area of Δ ABC = 219.13

3 0
3 years ago
A baseball team has home games on Friday and Sunday. The two games together earn ​$3432.00 for the team. Friday​'s game generate
scoundrel [369]

Answer:

Friday's game generates $1,664 while Sunday's, game generates $1,768 for a total of $3432.00.

Step-by-step explanation:

First, identify what you know:

1) A baseball team has home games on Friday and Sunday

2) Both games, combined, earned $3432.00

3) Friday's game generated $104.00 less than Sunday's game.

We can create a formula to solve our problem!

$3,432 = x + (x - 104)

$3,432 + 104 = x + x

$3,536 = 2x

$3,536/2 = x

x = $1,768

Sunday's game earned $1,768! If Friday's game earned $104 less, then simply subtract that from Sunday's earning!

$1,768 - $104 = $1,664

Friday's game cost $1,664, and Sunday's game earned $1,768!

Hope this helps! :)

7 0
3 years ago
Read 2 more answers
Write the ratio 4.5: 2.25 in the form n:1
Novosadov [1.4K]

Step-by-step explanation:

you will divide both sides of the ratio I.e the 4.5 and 2.25 by 2.25

7 0
3 years ago
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