Question

Laredo rides his bike at a rate of 5 yards per second. about how many miles per hour can larenzo ride his bike?

Answer 1

1 yard=3 feet
5 yards to feet
5 yards times 3=15 feet

1 mile=5280 feet
15/5280 miles per second
1 hour=60 minutes
1 minute=60 seconds
1 hour=60 times 60 seconds=3600 seconds
1 hour=3600 seconds
divide both sides by 3600
1/3600hour=1 second

(15/5280)miles per (1/3600) hour


`( (15)/(5280) )/( (1)/(3600) )`

invert and multiply


`(15)/(5280)` times
`(3600)/(1)`=
`( 54000)/(5280)`=
`( 225)/(22)` =10.2273 miles per hour