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3 years ago

If the area of a square is numerically twice the perimeter of that square, what is the side of the square?

1 answer:

6 0

Let "s" be the side of the square then:
<span>perimeter = 4s
</span><span>area = s</span>²

2s² = 4s
s² = 2s
s² - 2s = 0
s(s-2) = 0
s = 0 ∅
or
s -2 = 0
s = 2

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3 years ago

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Alenkasestr [34]

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3 years ago

Julia can finish a 20-mile bike ride in 1.2 hours. Katie can finish the same bike ride in 1.6 hours. How much faster does Julia

Nimfa-mama [501]

We know that, $speed = \frac{distance}{time}$

Julia can finish a 20-mile bike ride in 1.2 hours.

The distance Julia travels is 20 miles and the time she takes is 1.2 hours.

So, Julia's speed = $\frac{20}{1.2}$ = 16.67 mph

Katie can finish the same bike ride in 1.6 hours.

The distance Katie travels is 20 miles and the time she takes is 1.6 hours.

So, Katie's speed = $\frac{20}{1.6}$ = 12.5 mph

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3 years ago

Read 2 more answers