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2 years ago

Plz help and if u don't know then don't answer

Mathematics

1 answer:

Anon25 [30]2 years ago

3 0

We see a right triangle here.
Use the Pythagorean Theorem:
a^2+b^2=c^2
a & b=legs
c=hypotenuse
a^2+15^2=20^2
a^2+225=400
a^2=175
a=13.2287565553
a=13.2
The missing side is 13.2cm

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Answer:

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$\frac{7y+2y^2-7}{3-4y}$

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$\frac{2y^2+7y-7}{3-4y}$

we know that

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3 years ago

if your car gets 26 miles per gallon how much does it cost to drive 420 miles when gas is $2.80 per gallon

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Answer:

$45.22

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The number of miles per gallon can be represented by the ratio:

$\frac{miles}{gallon}=\frac{26}{1}$

Since we know the unit rate of 26 miles per gallon of gas, we can set up a proportion, or equivalent ratios, to find the number of gallons needed for 420 miles:

$\frac{26}{1}=\frac{420}{x}$ , where 'x' is the number of gallons of gas

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16.15 x $2.80 = $45.22

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