3 years ago

must fill out whole sheet, and you don't have to explain, just the answer will be fine. 100 points + brainliest for best answer

Mathematics

1 answer:

krek1111 [17]3 years ago

6 0

1.a 2 + 22s

1 b. -6a + 8

2a. 81r + 18

2b. 132+ 50p

3a. -36 - 4r

3b. 40 + -25m

4a. 6+16r

4b. -28z + 7

5a. 96y - 40

5b. -99u -72

6a. 77 - 63m

6b. -40 - 35p

7a. -72v + 6d

7b. -45b - 9c

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Answer:

56.7 mi/h

Step-by-step explanation:

The formula for average speed is:

Average Speed = $\frac{TotalDistance}{TotalTime}$

Thus we have:

Average Speed = $\frac{210+130}{3.5+2.5}\\=\frac{340}{6}\\=56.66$ mph

<em>Rounding to the nearest tenth, we have </em>

Average Speed = 56.7 mi/h

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