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3 years ago

PLZ HELP! ASAP!!! I WILL GIVE BRAINLIEST

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

8 0

Answer:

see explanation

Step-by-step explanation:

Using cross- products, that is

$\frac{a}{b}$ = $\frac{c}{d}$ then ad = bc

Given the ratios

$\frac{4}{14}$ and $\frac{6}{21}$

Then equating and using cross- products

If both sides equate then the ratios are equivalent

$\frac{4}{14}$ = $\frac{6}{21}$ , then

4 × 21 = 6 × 14 ⇒ 84 = 84

Both sides are equal thus the ratios are equivalent

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What is the answer to 8x^3+125 by factoring the perfect cube?

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Answer:

$\large\boxed{8x^3+125=(2x+5)(4x^2-10x+25)}$

Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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2 years ago

Joel spends 272727 more minutes playing soccer after school on Tuesday than he did on Monday. He still exercises for a total of

Nookie1986 [14]

Joel spent 72.5% of his time exercising after playing soccer on Tuesda

<h3>How to determine the percentage?</h3>

The given parameters are

Minutes spent on Tuesday = 27 more minutes than Monday

Total minutes spend = 60

This means that

Tuesday = Monday + 27

Monday + Tuesday = 60

Make Monday the subject in Tuesday = Monday + 27

Monday = Tuesday - 27

Substitute Monday = Tuesday - 27 in Monday + Tuesday = 60

Tuesday - 27 + Tuesday = 60

Evaluate

2 * Tuesday = 87

Divide by 2

Tuesday = 43.5

The percentage of time spent exercising on Tuesday is then calculated as

Percentage = 43.5/60 * 100%

Evaluate the expression

Percentage = 72.5%

Hence, Joel spent 72.5% of his time exercising after playing soccer on Tuesday