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oksian1 [2.3K]
3 years ago
10

On his diet, John's weight dropped from 200 to 178 pounds. What was the percent of decrease in his weight ?

Mathematics
1 answer:
andrew11 [14]3 years ago
3 0

Answer:

200-178=22

22/200*100=2200/200

2200/200=11

11%

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A set of pulleys is used to lift a piano with a mass of 102 kg. The piano is lifted 3 meters in 1 minutes. How much power is use
agasfer [191]

Answer:

50.031 watts

Step-by-step explanation:

Formula

Power = Force * distance / time

The units are critical

distance = meters

time = seconds

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Solution

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a = 9.81

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T =  minute = 60 sec/min * 1 min

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3 0
3 years ago
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mojhsa [17]
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3 years ago
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DedPeter [7]

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Step-by-step explanation:

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4 0
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sometimes

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Question 3 of 10
iragen [17]

Answer:

Question 3 of 10 The answer should be 7

Step-by-step explanation:

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6 0
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