Question

John's income increased by 4%. if his income rose by $850, find his previous amount​

Answer 1

$21,250

Explanation:

4% = 850

100% = x

Cross multiply the above to get 21,250

Another way of doing this is:

850 divided by 4 = 212.5

So every percent is equal to 212.5, so:

212.5 * 100 (for 100%) = 21,250

Answer 2

$21250

Explanation:

x- previous amount

4% of x = $850

0.04x=$850

x= $850/0.04

x=$21250