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Foundation November 2019 Paper 1 Q4

EduqasFoundationCurrent spec4 marksSolving Simple EquationsSubstitution

4. Ted is a salesman.
His pay is calculated using this formula.

\[\text{Ted’s pay} = 100 + \dfrac{\text{value of Ted’s sales}}{5}\]
(a)

One week the value of Ted’s sales was £800.

What was Ted’s pay for this week? [2]

(b)

The next week Ted’s pay was £400.

What was the value of Ted’s sales for this week? [2]