How do you write 40/25 as a percentage?

1 answer:

6 0

<span>What percent of 40 is 25?
Let x = what percent
of = multiplication
is means =
We now write it in math terms:
x times 40 = 25

40x = 25
Divide both sides by 40 to find x.
x = 25/40
x = 0.625
Change the decimal number 0.625 to a percent.
x = 62.5%
</span>

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What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4?

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ANSWER

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EXPLANATION

Method 1: Rewrite as product of
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We use the fact that
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This implies,

${i}^{0} \times {i}^{1} \times {i}^{2} \times {i}^{3} \times {i}^{4} = {i}^{0} \times {i}^{2} \times {i}^{2} \times {i}^{2} \times {i}^{2} \times {i}^{2}$

We substitute to obtain,

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