Question

i helped 3.6 customer per half hour yesterday. so i helped _____ customers in 7.5 hour yesterday

Answer 1

3.6 customers     x customers

--------------------   = ----------------

.5 hours                 7.5 hours

using cross products

3.6 * 7.5 = x * .5

divide by .5 on each side

3.6 * 7.5 / .5 =x

54 =x

You can help 54 customers