If took john 12 hours riding his bike to make the round trip to his uncles if he averaged 20 mph out and 40 mph back how long did he travel each way?

When a jug is 1/2 filled with marbles, it weighs 2.6 kg. The jug weighs 4 kg when it is full. Find the weight of the empty jug.

The probability of an event A occurring is 0.73. Determine. P (A) a) 0.73 b) 0.00 c) 0.27 d) 1.00

Determine whether the equation is an identity or not an identity.

One aluminum can weighs about 1/25 lb. if your school starts a recycling drive, how many cans will your school me to collect to recycle one ton?

What operation should be used to solve the equation 153=g+45

A plane left chicago at 8:00 A. M. At 1 PM the plane landed in Los Angles, which is 1500 miles away. What is the average speed of the plane for the trip?

The space shuttle can travel about 8*10 to the power of 5 centimeters per second. Is it more appropriate to report this rate as 8*10 to the power of 5 centimeters per second or 8 kilometers per second?

Which set of side lengths form a right triangle? A 14m, 20m, 25m B 10cm, 6cm, 8cm C 7cm, 8cm, 10cm D 3ft, 6ft, 5 ft

A car tire has a radius of 1.5 feet. If the tire is rotating at 800 rpm, what is the speed of the car in miles per hour (1 mile = 5,280 feet) ? Round the answer to the nearest tenth.

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Mrs. Walters drove 160 miles on 5 gallons of gas. How many gallons of gas will she need to travel 256 miles?