book Maths Puzzle Numerical Ability

i need help with these problems as well please.

x(y+12) divided by 10 (x-y) x=5 and y=-3

would you just plug in 5 for x and -3 for y and you would get 9/16??

Read Solution (Total 0)

book Other Question

Two numbers have a sum of 39. Their difference is 11. What are the two numbers. Please show me how to set this problem up. Thank you. The formula A=2h(l+w) gives the lateral area A of a rectangle solid with length l, width w, and height h.

Q. Solve this formula for h.