2r + 2s = 50 and 2r - s = 17.

A. r = 3, s = 11

B. r = - 8, s = 33

C. r = 14, s = 11

D. r = 25, s = 33

Clare buys an item with a normal price of $24, but saves $6 by using a coupon. For what percentage off is this coupon?

The base diameter and the height of a cone are both equal to x units. A cone has a height of x and a diameter of x. Which expression represents the volume of the cone, in cubic units?

Sara and Gordon win some money and share it in the ratio 2:1. Sara gets £20. How much did they win in total

Write the given second order equation as its equivalent system of first order equations. u″+5u′+4u=0 u″+5u′+4u=0 use vv to represent the "velocity function", i. e. v=u′ (t) v=u′ (t).

A doctor treated 24, 27, 31, 19, 26, 15, and 19 patients during the past 7 days. Which is the median number of patients treated by the doctor?

A bicycle's wheel rotates 1 degree at each interval of its rotation. If it rotates 110 degrees, how many 1-degree rotations does it make?

A Circular fence is being placed to surround a tree. The diameter of the fence is 4 feet. How much fencing is used, round to the nearest 10th if necessary

Solve the absolute value equation. Graph the solution. 2|3x-5|-8=8

What is the measure of ∠DAE?

Which property was used to write the equation in step 2? Step 1: 5 (x-7) - 55 Step 2: 5x-35-55 Step 3: 5x = 90 Step4 X = 18 distributive property addition property of equality subtraction property of equality division property of equality