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creativ13 [48]
3 years ago
5

At 4pm Charlie realizes he has half an hour to get to his grandmothers house for diner. If his grandmother lives 40 miles away h

ow fast will Charlie have to drive to get there on time
Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer: Charlie have to drive at a speed of 80miles per hour in order to reach there on time.

Step-by-step explanation:

At 4pm Charlie realizes he has half an hour to get to his grandmothers house for diner. Knowing that the time he has left is 30 minutes and the distance to his grandmother's place is 40 miles, the only thing that he can control is his speed

Speed = distance travelled / time taken

40/0.5 = 80 miles per hour

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The measures of two supplementary angles are (4x + 8) and (6x + 3)º.
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Step-by-step explanation:

A supplementary angle is an angle that is 180 degrees. We are given two angles that add up to 180, but we need to solve for x first.

The first step is to solve both angles. We know that both angles added together are supplementary, so they are equal to 180.

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Because we know a supplementary angle is 180 degrees, we can solve for x to find both angles.

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Now, we know the value of x, so we plug in x for both angles to determine which angle is smaller.

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and the other angle

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Now we know that the smaller angle is 75.6 degrees.

Also, to make sure the math is correct, when plugging in both numbers after finding x, they should add to 180.

75.6 + 104.4 = 180 so we know they are supplementary for sure.

Good luck!

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