mary is 3 years less than twice as old as her sister. mary is 11 years old. write and solve an algebraic equation to find mary's sisters age.

Consider the following system of equations: y = - x + 2 y = 3x + 1 Which description best describes the solution to the system of equations? Line y = - x + 2 intersects line y = 3x + 1. Lines y = - x + 2 and y = 3x + 1 intersect the x-axis.

A gallon of stain can cover a square deck with the area of 300 square feet about how long is each side of the deck round your answer to the nearest foot

In the equation Q - 12 = 89, what is the value of Q? A. 102 B. 78 C. 101 D. 77

What is the quotient of 305 : 5

A property owner wants to build a small bridge across a stream running through his field. He knows that the weight the bridge can support is inversely proportional to the length of the bridge.

Round 5.275 to the nearest hundredth

Brooklyn needs to earn $14 more dollars to have $32. How much money does Brooklyn have now? Identify the steps needed to write and solve an equation to solve the word problem. Select all that apply.

If you are 16 years old now, which equation could be used to solve for your age, F, 15 years from now A. 16 x F = 15 B. 16-15=F C. 16+F=15 D. 16+15=F

What value of a makes the equation true? 1.7a+0.3a=4/5 1. a=2/5 2. a=2 4/5 3. a = - 1 1/5 4. a = 1 3/5

Solve 6x + 26x - 10 = 8 (4x + 10).