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IgorLugansk [536]
3 years ago
9

10 cm

Mathematics
1 answer:
attashe74 [19]3 years ago
4 0

Answer:

80

Step-by-step explanation:

Because you do 10*8=80

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Andy drove 840 miles in 12 hours. How much miles can he drive per hour?
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Answer:

70

Step-by-step explanation:

840 / 12 = 70

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The diameter of a Frisbee is 12 in. What is the area of the Frisbee?
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Juan and Nina are in the Junior High Orchestra. As part of the orchestra they each have to learn two instruments. Juan is learni
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Nina practiced the viola for 11.25 hours last week.

Step-by-step explanation:

Juan practiced the violin for 9 hours last week. For each 3 hours that he practices the violin, he practices 2.5 hours of cello. So

3h violin - 2.5h cello

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For every 3 hours Nina spends practicing the viola she practices the cello for 2 hours. So:

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