Question

4. Jim paid £70 for a bike.

Then pays £10 per month.


a) Write down an expression


for the total amount paid after


m months.


b) Factorise the expression.

Answer 1

Explanation:

100

Answer 2

Explanation:

Jim paid £70 for a bike. Then pays £10 per month.

a) Write down an expression for the total amount paid after m months.

cost = 10m + 70

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b) Factor the expression.

10m + 70

common factor is 10 so:

10(m + 7)