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2 years ago

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A car traveled at an average rate of 51 miles per hour on one highway. It then traveled at an average rate of 71 miles per hour

on a second highway. If the car traveled a total of 508 miles in 8 hours, how many miles were driven on the first highway?

1 answer:

sergiy2304 [10]2 years ago

3 0

d1 = 51(t)

d2 = 71(8 - t)

d1 + d2 = 508

and now you just have to solve for t.

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Step-by-step explanation:

we know that

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we have the coordinates

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step 1

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step 2

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substitute in the formula

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step 3

Find the length side DF

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step 4

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we have

$d_D_E=\sqrt{90}\ units$

$d_E_F=\sqrt{65}\ units$

$d_D_F=\sqrt{221}\ units$

so

Is a scalene triangle, because is a triangle in which all three sides have different lengths.

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