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masha68 [24]
2 years ago
14

A proportional relationship is formed when y=16 and x=-4 what is the value of x when y=4?

Mathematics
1 answer:
Mnenie [13.5K]2 years ago
8 0

Answer:

-1

Step-by-step explanation:

The correct model to use for a proportional relationship is y = kx, where k is the constant of proportionality.

If y = 16 when x = -4, then this model becomes 16 = k(-4).  Solving for k, we get k = -16/4, or k = -4.

Thus, the specific formula to use here is y = -4x.

Now if y = 4, 4 = -4x, and x must therefore be x = -1.

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3 0
2 years ago
A parking lot covers 32,420 square feet .what id its area to the nearest thousand feet
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Answer: 32,000

Step-by-step explanation:

the thousands place (1000) is the fourth number to the left of the decimal, so round that one either up or down based on the number just one spot closer to the decimal, in this case, the hundreds place (100).

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we can ignore the numbers that are going to become zeros as a result of the rounding . .

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