Answer:
-35/4
Step-by-step explanation:
You need to find out how many problems Carl can do in a minute (unit rate), which is 20/55 or .36363636363. If you multiply it by 75 mins, you get 27.27, so the answer would be 27.
Answer:
2,520 - 140x
Step-by-step explanation:
It's 140 feet per minute, so if you need to find it's height after x minutes you just plug in your value for x.
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Answer:
unshaded area is 8 times bigger than shaded region
area of semi circle =2πcm²
area of circle =16πcm²
now,
let the shaded region be x times bigger
again
16πcm²=2πcm²*x
x=16πcm²/2πcm²
x=8
Step-by-step explanation: