Question

The average of two numbers, a and b, is given by:
A=a+b/2 If the average of two numbers is 73, and if one of the numbers is 59, then what is the other number? Please show all of your work.

Answer 1

Did you plug in the numbers?

Answer 2

Did you plug in the numbers?

Answer 3

I tried plugging it but I am having hard time

Answer 4

\[A=\frac{a+b}{2}\]
\[73=\frac{59+b}{2}\]
Multiply both sides by 2
\[146=59+b\]
subtract 59 from both sides
\[87=b\]

Answer 5

Thanks

Answer 6

yw