Two planes left an airport at noon. One flew east at a certain speed and the other flew west at twice the speed. The planes were 2700 miles apart in 3 hrs. how fast was each plane flying?

Solve for the variable. Show all work for full credit. 5 + 4 (21 + 3x) = 41

The sum of three times a number (x) and - 23 is 28

Whats the square root of 110

A bean plant was 15 centimeters tall one week ago. In 5 days it grew 1 meter. find the current height of the plant.

42 divided by 6 in repeated subtraction

Henry is four times older than James. Next year, Henry will be three times older than James will be. How old are Henry and James now? a. James is 3 years old; Henry is 4 years old. b. Henry is 4 years old; James is 3 years old. c.

Wayne and Winston are scuba diving and are ascending to the surface. The function y = 30x - 105 represents Wayne's elevation in feet in terms of the time in minutes he ascends.

What is 470,000 in scientific notation

Why do you suppose the United States still uses the English System for everyday measurements, while almost every other country uses Sl? Give several possible reasons

Solve the system of equations by graphing. x+y=3, y=2x-15