Joe work 21 hours on his class project. He worked 3 times as long is Marie did. How long did Marie work on a project? Translate and solve the equation

What is x/3 so solve for x if it equals 90

The resultant of two forces acting on a body has a magnitude of 60 pounds. The angle between the 28-pound force and the resultant is 50°. Find the magnitude of the other force. a. 66.3 pounds b. 47.2 pounds c. 80.9 pounds d. 59.3 pounds 2.

The pendulum of an antique clock has been damaged and needs to be replaced. If the original pendulum completed one swing every 3.2 seconds, how long should the new pendulum be? Round your answer to the ones place. Use The Formula: T=2π√ L/980

On an uphill hike, Ted climbs at a rate of 3 miles an hour. Going down, he runs at a rate of 5 miles an hour. If it takes him 40 minutes longer to climb up than run down, what is the total length of Ted's hike?

How do you solve equations with exponents

Find the percent of error if the estimate is $230 and the actual amount is $245. round to the nearest whole percent.

What is the property of 85+0=

Which equation has no solution A) |-x - 3| = 5 B) |2x - 1| = 0 C) |5 - 3x| = - 8 D) |-x + 9| = 0

Identify the fractions as proper, improper, or mixed; however, if the fraction is equivalent to one, indicate so. 3 1/8

2) Evaluate the expression * x3 - 3y for x = 1, y = 4/3