Math

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One week, Mrs. Peterson went to her health club on Monday, Wednesday, and Friday. Each day she went to the club, she jogged on the treadmill for 3/5 hour, lifted weights for 1/4 hour, and then cooled down by stretching for 1/4 hour. On Saturday, she rode her bike for 3/4 hour. How many hours did she spend riding and bike and exercising at the health club that week?

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Let's use decimals

3(0.6 + 0.25) + 0.75 = ?

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So then the equals 3.3 ???? that's not an answer choice

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Oops -- We forgot to include 1/4 hour for stretching.

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Oh yeah! I was like what? But thanks! Also can you help with this one? It is a little confusing..
Mrs. Hansen raises German Shepherd puppies. She kept track of the weight of one of the puppies for 4 months. The puppy gained 7 1/4 pounds the first month, 10 1/4 pounds the second month, 8 1/4 pounds the third month, and 10 1/2 pounds the fourth month. What was the puppy's average weight gain per month?

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(7.25 + 10.25 + 8.25 + 10.5)/4 = ?

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51450

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