Question

14 lessons costs $210. What would 72 lessons cost

Answer 1

If 14 is equal to 210 so

14---->210

So how much 72 costs

14----210

72-----??

So 72 multiple by 210 all divided by 14 which is original number of courses

(72*210)/14 = 1080

Answer 2

$1,080

Explanation:

To solve, we can make a proportion

14 lessons are $210 and 72 lessons are $x

14/210=72/x

Cross multiply

14*x=210*72

14x=15120

To solve for x, we need to get x by itself. Since x is being multiplied by 14, divide both sides by 14.

14x/14=15120/14

x=1080

So, 72 lessons will cost $1,080