exam Maths Puzzle Numerical Ability

The sum of twho numbers is 89. Adding four times the first number to the second number gives 155. WHich one of the follwoing equaitons expresses this problem algebraically?

Read Solution (Total 0)

exam Other Question

Direct

Problem #3

Simplify

(sqrt(20))/(5) minus (1)/(sqrt (5))


Problem #4
Simplify

sqrt ((7)/(100))
Help me please
2x+5y=3
-x+3y=-7