Dimensional analysis: 1.35 kilometers per second= ? miles per hour

1.35 km 1000 m 100cm
x x
1 sec 1 km 1 m

Continued:

100 cm 1 in 1 ft 1 mi
x x x
1 m 2.54 cm 12 in 5280 ft

Continued:

1 mi 3600sec
x
5280 ft 1 hr

= 3019863994273

= 3.0199 x 10^3 mph

= 3019.86 mph

I apologize for all the work... I couldn't find a pen or pencil.

subtract 17, not 22, from both sides. 17 – 17 = 0 and 22 – 17 = 5. The answer should be x = 5.

Step-by-step explanation: