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3 years ago

12

A tree casts a shadow 18 feet long. At the same time, a vertical rod 12 feet high casts a shadow 4 feet long. How long is the tr

ee?

1 answer:

Art [367]3 years ago

4 0

18×3=54
12÷4=3
so multiply 18 by 3

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The population of a city has decreased by 35% since it was last measured. If the current population is 9100 , what was the previ

Alina [70]

The previous population was 14000.

Explanation

The population decreased by 35% since the last measurement. So the current population is less than the previous population.

current population=9100

previous population =x

current population is 35% less than the previous population x

$9100=x*(100-35)/100\\9100=(x*65)/100\\x=(100*9100)/65=14000$

The previous population was 14000.

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2 years ago

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nikdorinn [45]

Answer:

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Step-by-step explanation:

20x=9

x= 9/20 = .45

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3 years ago

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densk [106]

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