book
Maths Puzzle
Numerical Ability
i need help solving this equation: r(R1+R2)=R1R2,for R
Read Solution (Total 0)
book Other Question
How do you solve this problem;
ab divided by c = d.
and
a+a times c = to d
3) Evaluate. 81 ÷ 9 - 16 ÷ 8
i thought was 8 but i was wrong.