Question

A person's weekly wage is worked out using the formula

Wage= Number of hours of overtime * £16 + Basic pay
a)
Find a person's Wage when the Number of hours of overtime is 9
and the Basic pay is £140.
b)
Find the Number of hours of overtime, when the Wage is £300
and the Basic pay is £124.

Answer 1

a) £284

b)11

Explanation:

To find the weekly wage you have to solve this equation where y=wage, x=number of hours overtime and z=basic pay:

y=x*£16+z

a) y=9*£16+£140 = £284

b) You need to invert the formula, letting on the left side of the equal only the x:

x=(y-z)/£16

so you have:

x=(£300-£124)/£16 = 11