Solution: 8X=0.6× 12
x = 7.2 \8
X=0.9
(1) Solution: Set the wonderful idea to 1 minute and jump rope x times.
(2) Solution: Set the playground to be x meters long.
X:54=5:3
3X=54×5
x = 90°
(3) Solution: Let its actual length be x cm.
24.9:X= 1:24
X=24.9×24
X=597.6