Question

nina earns $15 for each yard she mows. She wants to buy a dress that costs $109. How many yards will she need to mow to earn the money for the dress? Explain

Answer 1

109/15 = 7.2 but she can't mow .2 so the answer would be 8.

Answer 2

109 dollars is our final goal, and we get 15 per lawn. To find out how many, divide these two to see how many lawns are needed.
109/15=7.26
Since we are not going to get paid for only finishing part of the lawn, we must round up to a complete lawn, at 8, to get enough payment.

Hope this helps!