3 years ago

What is 0.55% of 220=

Mathematics

1 answer:

alekssr [168]3 years ago

6 0

The answer is 121. Hope that helped :)

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the starting number is 751

Step-by-step explanation:

multiple 20 × 4 and get 80 then add to 671 which is 751

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Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. T

earnstyle [38]

Answer:

36 miles.

Step-by-step explanation:

We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.

$\text{Distance}=\text{Speed}\times \text{Time}$

Substitute the given values:

$\text{Distance}=(\frac{4\text{ miles}}{\text{Hour}}+\frac{20\text{ miles}}{\text{Hour}})\times 3\text{ Hours}$

$\text{Distance}=(\frac{24\text{ miles}}{\text{Hour}})\times 3\text{ Hours}$

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$\text{Distance}=72\text{ miles}$

The total distance is 72 miles, so the distance going up would be half of 72.

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Therefore, Karina went 36 miles up the mountain.

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3 years ago