Question

When a colcano erupts the height of the peak id reduced and the upper portion is removed the height of a volcano after it erupted was 8,219.5 feet this was 85% of the original height what was the original height

Answer 1

9670 feet

Explanation:

The height given (8219.5 ft) is 85% OF ORIGINAL, hence original is much higher. But how do we figure this out?

we translate word problem to equation.

8219.5 IS 85% of TOTAL

Firstly, 85% = 85/100 = 0.85

Remember, is means =

of means multiplication

So we have:

8219.5 = 0.85 * Total

Hence, total = [let total be 7]

8219.5 = 0.85 * t

t = 8219.5/0.85 = 9670 feet