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zubka84 [21]
3 years ago
8

What % of $30 is $21?

Mathematics
2 answers:
PolarNik [594]3 years ago
4 0

Answer:

x/100 x 30 = 21 (solve for x) x =70

I wish I could explain more but if your just lazy to do this i wont explain but if you honestly dont know I will explain, so solve for x you must multiply by a 100 on both sides and on the right side you multiply it to the fraction so x/100 x 100 = x (variable by itself means 1) then 21 x 100 = 21,000 therefore you are left with 30x since you are multiplying x and 30 together then you will divide by 30 on both sides to get x = 70

Black_prince [1.1K]3 years ago
3 0

Answer:

70

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Poorly formatted question.

The given equation is:

y = -x^2 + 10x - 8

Required

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To do this, we set y = 0

So, we have:

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