Solve the system by substitution.

-x+2y=57

10x=y

What number does 584 round to? 580 or 585?

Solve for a. c = / pi a b Answers? 1) c/8 = a 2) c/8/pi = a 3) 8 / pi b c = a 4) c / 8/pi b = a

A rectangle has a length that is increasing at a rate of 10 mm per second with the width being held constant. What is the rate of change of the area of the rectangle if the width is 8 mm?

The following data was collected on a cheetah. It ran ½ mile in 2/3 min, ¼ mile in 1/3 min, and ¾ mile in one minute. 1. Give one method that can be used to prove that the different rates for the cheetah's data are proportional or non-proportional.

A store marked up the prices p of its merchandise by 11%. The marked-up prices of the merchandise can be written as 1.11p. Which other expression is this equal to?

The length of a rectangular garden is 7 meters longer than its width. if its perimeter is (12 x + 14) meters, find its length in terms of x.

Job A pays $10.95 per hour, 40 hours per week. Job B pays $18,500 per y. Which job pays better? A) Job A B) They pay the same. C) Job B

4x-6+2y=10 Write the equation in slope intercept form.

Solve for y: 10y-50=-20

What is the simplified equation of 9 (x+3) - (2x+5) ?