Percent of change. What number increased by 40% equals 14 ? How do I solve this
1 answer:
Set up an equation, where n is the original number. Since there is a 40% increase, 40% of itself is added to itself to make 14:
n + .4n = 14
You can now combine the n and .4n, since they're compatible terms. Keep in mind that n = 1n:
1.4n = 14
Divide each side by 1.4 to solve for n:
n = 10
The original number is 10.
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