exam
Maths Puzzle
Numerical Ability
how do you show your work on perpendicular equations like this, 1) y = -1/3+1,
Y = -3x+3 2) y =3/5x+2, Y = -5/3x-2 3) Y = -5, x=5
Read Solution (Total 0)
exam Other Question
A wallet contains $1, $5 and $20 bills. The number of $5 bills is equal to the sum of the other bills. If the wallet contains ten bills total, how many $5 bills does it contain?
Use the formula a(sub1) + a(sub1)r + a(sub1)r^2 + ... a(sub1)^n-1 =
a(sub1) 1-r^n/1-r for the nth partial sum of a geometric sequence to find the sum 1 + 2/3 + 4/9 + 8/27 + ... 64