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Tatiana [17]
2 years ago
10

The equation below describes a proportional relationship between x and y. What is the constant of​ proportionality?

Mathematics
1 answer:
Molodets [167]2 years ago
6 0

Answer:

10

Step-by-step explanation:

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What does (d+3) represent in 4.5(d+3)=45
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(d + 3) would be 10

Step-by-step explanation:

<u>Step 1:  Distribute</u>

4.5(d + 3) = 45

(4.5 * d) + (4.5 * 3) = 45

4.5d + 13.5 = 45

<u>Step 2:  Subtract 13.5 from both sides</u>

4.5d + 13.5 - 13.5 = 45 - 13.5

4.5d = 31.5

<u>Step 3:  Divide both sides by 4.5</u>

\frac{4.5d}{4.5} = \frac{31.5}{4.5}

d = 7

<u>Step 4:  Determine what (d+3) is</u>

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{ - z}^{6}  \\ z =  - 3

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= -729

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