two blocks of ice, one four times as heavy as the other, are at rest on a frozen lake. a person pushes each block the same distance d. ignore friction and assume that an equal force f⃗ is exerted on each block.

If (a, b) is the solution to the system of equations shown above, and a and b are integers, then what is the value of a+b?

What must students do with the 10 gird-ins on the math section of the psat

Vera is on her school's track and field team. in a practice long-jump competition against her teammates, she gets 5 points for landing over the farther line. she gets a total of 7 jumps and lands x times over the farther line and the rest of the times over the closer line. which of the following functions represents vera's total score? a. f(x)=10x b. f(x)=5x+35 c. f(x)=10x+5 d. f(x)=70-5x