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26.10.2019 •
Mathematics
Acylindrical water tank is being filled with a hose. the depth of the water increases by 1 1/4 feet per hour. how many hours will it take for the water level in the tank to be 3 1/2 feet deep?
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Ответ:
1 and 1/4 times what=3 and 1/2
convert to improper
1 and 1/4=1+1/4=4/4+1/4=5/4
3 and 1/2=3+1/2=6/2+1/2=7/2
5/4 times what=7/2
times both sides by 4/5 to clear fraction (5/4 timers 4/5=20/20=1)
what=28/10
what=20/10+8/10
what=2+4/5
answer is 2 and 4/5 hour or 2hr and 48mins
Ответ:
Step-by-step explanation:
Salina's age is one-fourth of her aunt's age. We would have to divide aunt's age by 4 or multiply her aunt's age by 1/4.
Letting 'a' represent her aunt's age:
Both of these equations can be correct in finding Salina’s age.