What is the ratio of a to b 10/21=2a/a+b

Aiden weighs 39 pounds less than his brother Jacob. Jacob weighs more than 100 pounds. what could be the weights of the two brothers?

Runners in a long distance race start out going 8 kilometers east and then head north for the remainder of the race. The finish line is 10 kilometers from the starting line. How far did the runners travel north? A. 2 km B. 6 km C. 10 km

12) Josh has $252 in his bank account. This is $12 more than 6 times the amount of money that Sally has in her account. Write and solve an equation to determine how much money Sally has in her account.

Newport Township is building a new playground area for neighborhood kids. The playground will be a square with a perimeter of 56 + 8 3 x An equivalent expression is 56 + 8 (1 3 x).

Calculate the difference between your estimate in Part A and the actual value you calculated in Part B. Be sure to show this solution as an equation. Based on this difference, do you think your estimate for Part A was reasonable? Explain.

Estimate the mixed number 20by rounding to the nearest whole number or one-half. 20 3/20 estimates to ...

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided

Two trains start heading toward each other from two cities, the distance between which is 720 km and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train.

Divide X^2+77x+20 by x+9 what is the quotient and remainder?