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Please answer!! it’s 12:08 am and i’m trying to get these two questions done

Please answer!! it’s 12:08 am and i’m trying to get these two questions done-example-1
User Claud
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1 Answer

3 votes

Answer:

21 and 14

Explanation:

The relationship between x and y is proportional thus the equation is

y = kx ← k is the constant of proportion

To find k use the ordered pair y = 84 when x = 28 , then

84 = 28k ( divide both sides by 28 )

k = 3

y = 3x ← equation of proportion

When x = 7 , then

y = 3 × 7 = 21 ← value required in top table

When y = 42 , then

42 = 3x ( divide both sides by 3 )

x = 14 ← value required in lower table

User Pdanese
by
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