Two cars leave the same location at the same time but one car is heading north and the other is heading south. after 3 hours, the cars are 360 miles apart. if the car heading north is traveling 10 miles per hour slower than the car heading south, what are the two speeds of the cars?

show the equation

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction