Mrs Penelope bought some sandwiches and muffins at the prices shown.
She bought 4 more muffins than sandwiches and spent $43 altogether. How many sandwiches did she buy?
|
Muffins |
Sandwiches |
Total |
Number |
1 u |
1 u + 4 |
|
Value |
$3 |
$2 |
|
Total value |
3 u |
2 u + 8 |
5 u + 8 |
Amount spent on muffins
= 3 x 1 u
= 3 u
Amount spent on sandwiches
= 2 x (1 u + 4)
= 2 u + 8
Total amount spent on the pastries
= 3 u + 2 u + 8
= 5 u + 8
5 u + 8 = 43
5 u = 43 - 8
5 u = 35
1 u = 35 ÷ 5 = 7
Total number of sandwiches
= 1 u
= 7
Answer(s): 7