Which ratios are equivalent to 30:20.

40:30,

10:0,

3:2,

6:2.

Show that for the same shear angle, there are two rake angles that give the same cutting ratio.

What is the equation of the ellipse with foci (5, 0), (-5, 0) and co-vertices (0, 4), (0, - 4) ?

The water level in a swimming pool increased from 4.5 feet to 6 feet. What is the percent increased in the water level rounded to the nearest tenth of a percent? Show your work

In a party, there are 10 pairs arriving, each consisting of a boy and a girl. Then, there is a dance, where each boy dances with one girl (and one girl only).

How to do slope and graph - x+3y=15

Carla has a credit card that uses the average daily balance method. For the first 15 days of a 31-day billing cycle, her balance was $2560, but then she paid off her entire balance and didn't make any new purchases.

The expression x^2 + x + b is a perfect square trinomial. What is the value of b?

Solve the equation by factoring: 3x^2 + 22x - 16 = 0

If a 10 foot piece of electrical tape has 0.037 feet cut from it, then what is the new length of the tape?

Josue has to solve the equation - 4x+8=2x+10. He notices he can first divide every term by factor of 2 to make the equation easier to solve. Using Josue's strategy, which equation will result?