6. One minute =60 seconds

45:54=60:72

45:60=54:72

Step 7 omit

8. Solution: Let its actual length be XCM solution: Let the model car length be XCM.

24.92:X = 1:24 X: 1 1.76 = 1:24

1X = 24.92 * 24/ 1 24X = 1 1.76 * 1

X = 598. 18 X = 1 1.76/24

X =0.49

Lazy! ! ! ! ! ! ! ! ! ! !