Maths Higher GCSE

December 16, 2021 Babad A

Algebra- Problem solving practice

A music download website sells singles and albums.  The music download website makes 1000 sales in one hour.

Singles cost 50p to download.  Albums cost £4.50 to download.  The income for this hour is £1500.

How many singles does the website sell in this hour?

s+a =1000

0.50 s + 4.50 a= 1500

a= 1000-s

0.5 s + 4.5 (1000-s) = 4500-4s=1500

4s= 3000 and s=3000/4=750

In this hour, the website did sell 750 single.

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