Look at the pairs of multiplication and division facts below, and look for a pattern in each row.
Percent problems can also be solved by writing a proportion.
The correct percent fraction for the proportion is Jeff has a coupon at the Guitar Store for 15% off any purchase of $100 or more.
Jeff wonders how much money the coupon will take off of the $220 original price Percent problems have three parts: the percent, the base (or whole), and the amount.
As we discussed in pre-algebra, percent is a ratio that compares a number to 100. Percent is usually expressed with the percent symbol %.
Percent problems are usually solved by using proportions.
However, in this case, the question requires that you calculate another answer first: the number of questions Abel got right.
You'll need to subtract 4 from 80, then calculate the percentage of the difference: The standard approach would be to multiply 200 by 0.92: 200*.92=184.
You probably put the amount (18) over 100 in the proportion, rather than the percent (125).
Perhaps you thought 18 was the percent and 125 was the base.