Current location - Training Enrollment Network - Mathematics courses - Jiangsu Education Press, the answer on page 7.8 of the second volume of the sixth grade mathematics exercise book. And answer on page 12.
Jiangsu Education Press, the answer on page 7.8 of the second volume of the sixth grade mathematics exercise book. And answer on page 12.
1, solution; Rent x hours.

5+8x=2 1

8x= 16

x=2

2. Hour = 37.5 (4-3.5) = 75m2

4X-3.5X=37.5

0.5X=37.5

X=75