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3 years ago

Please help! It’s not too hard! Will mark brainliest!

Mathematics

1 answer:

Yuki888 [10]3 years ago

7 0

Step-by-step explanation:

In the first part, he was travelling with twice the speed, or Vs, for distance

48 - d, for 2 hours.

speed = distance/time

distance = speed * time

First part :

48 - d = 2V * 2

⇒d + 4V = 48

Second part:

d = V * 2

⇒d = 2V

Substitute 2s for d in equation 1.

2s + 4s = 48

6s = 48

s = 8

The speed in the second part is 8 mph.

The speed in the first part is 2s = 2(8) = 16

I hope this helps

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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telo118 [61]

Answer:

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Step-by-step explanation:

Trigonometric Ratios

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$\displaystyle \cos\theta=\frac{\text{adjacent leg}}{\text{hypotenuse}}$