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3 years ago

If 90 is 80% of a value, what is that value?

Mathematics

2 answers:

Anna71 [15]3 years ago

7 0

So 90 is 4/5 of a number.

4/5n=90

4n=450

n=450/4

n=112.5

Anon25 [30]3 years ago

5 0

90 is 4/5, so 1/5 is 22.5
90+22.5= 112.5
The value is 112.5 :)

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Which of the following is equivalent to the complex number -8(7i - 3i^2)

Leni [432]

Answer: B) -56i - 24

This is the same as -24 - 56i

=============================================

Explanation:

The 'i' refers to the imaginary number $\sqrt{-1}$

In other words, $i = \sqrt{-1}$

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So,

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2 years ago

Hector is dividing students into groups for an HR wants to divide the boys and girls so that each group has the same number of t

Roman55 [17]

Answer:

7 groups, 3 boys and 8 girls

Step-by-step explanation:

Let total number of groups be $x$

and total hikers in one group be $y$

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3 years ago

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The total cost is $42.60.

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STatiana [176]

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