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Lostsunrise [7]
3 years ago
11

Write a proportion that could be used to solve for each variable.

Mathematics
1 answer:
natulia [17]3 years ago
6 0
The answer is D.
18/6=x;x
3*8=24
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Kerrie uses the work shown below to determine 35% of 280.
lys-0071 [83]

For this case we must find 35% of 280.

Kerrie gets 10% and then 25%. So:

10% of 280:

280 ------------> 100%

x -----------------> 10%

Where "x" represents the amount given by 10% of 280.

x = \frac {10 * 280} {100}\\x = 28

Thus, 10% of 280 is 28.

Now, we find 25% of 280:

280 ------------> 100%

x -----------------> 25%

Where "x" represents the amount given by 25% of 280.

x = \frac {25 * 280} {100}\\x = 70

Thus, 25% of 280 is 70.

So we have that 35% of 280 is given by:

28 + 70 = 98

So, Kerrie's solution is correct.

Answer:

Option A

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X - the percent decrease

60-60x=39 \ \ \ |-60 \\
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It's a 35% decrease.
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