# algebra

posted by .

what is the speed in miles per hour of toy car that runs 40 ft in 8 seconds. 1 hour=3600. 1 mile=5280 ft

• algebra -

Cross multiply and solve for x.

40/8 = x/3600
8x = 144,000
x = 18,000 ft

18,000 / 5,280 = 3.4 mph

## Similar Questions

1. ### Physics Check

A man leaves his house and begins walking in a straight line. After 2 hours he is ten miles from home. Calculate the man's average speed in terms of feet per second. (There are 3600 seconds in an hour and 5280 feet in a mile.) so i …
2. ### biotech college

What is 29 miles per hour in units of m/s?
3. ### Algebra 1

A car travels on a highway at an average speed of 65 miles per hour. What was the speed in feet per second?
4. ### algebra 1

What is the speed, in miles per hour, of a toy car that runs 40 feet in 8 seconds?
5. ### conversion

How much longer, in seconds, is required to drive 1 mile at 40 miles per hour than at 60 miles per hour?
6. ### Math

A car travelling at 23 miles per hour accelerates to 46 miles per hour in 5 seconds. It maintains that speed for 5 seconds before it slows to a stop in 5 seconds. Sketch and label a graph showing the car's speed over time.
7. ### algebra

A student runs 100 meters in 11 seconds. What is the speed of the student?
8. ### Trigonometry- Help!

After one hour in flight, an airplane is located 200 miles north and 300 miles west of the airport. What is the magnitude of the plane's velocity?
9. ### algebra 1

A blue marlin can swim at speeds of about 50 miles per hour. What is that speed in feet per second, to the nearest whole number?
10. ### Math

The tires on a car are 25 inches in diameter. If the car is moving at a constant speed of 65 miles per hour, how many rotations per second is the front left tire making?

More Similar Questions