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max2010maxim [7]

3 years ago

9

Melissa’s family is driving out of state to her grandmother’s house. They know that it takes 20 gallons of gas to get there, and

the cost of three gallons of gasoline is $10.50. How much should the family budget to make the one-way trip?

1 answer:

Alex17521 [72]3 years ago

7 0

Answer:

$70

Step-by-step explanation:

10.50/ 3 = 3.5

3.5 times 20 =70

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The field inside a running track is made up of a rectangle that is 84.39 m long and 73 m wide, together with a half-circle at ea

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Answer:

The distance around the inside is 199.44 m.

Step-by-step explanation:

Given that,

Length = 84.39 m

Width = 9.76 m

Suppose, all the way around and 73 m wide.

We know that,

Perimeter of half circle is

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We need to calculate the inner radius of the circle

Using formula of radius

$r=\dfrac{D}{2}$

Put the value into the formula

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$r=4.88\ m$

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Using formula of distance

Distance around the inside= two inner perimeter of the circle+two length of rectangle

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Put the value into the formula

$D=2\pi\times4.88+2\times84.39$

$D=199.44\ m$

Hence, The distance around the inside is 199.44 m.

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