Mrs Jane bought some sandwiches and muffins at the prices shown.
She bought 7 more muffins than sandwiches and spent $50 altogether. How many sandwiches did she buy?
|
Muffins |
Sandwiches |
Total |
Number |
1 u |
1 u + 7 |
|
Value |
$4 |
$2 |
|
Total value |
4 u |
2 u + 14 |
6 u + 14 |
Amount spent on muffins
= 4 x 1 u
= 4 u
Amount spent on sandwiches
= 2 x (1 u + 7)
= 2 u + 14
Total amount spent on the pastries
= 4 u + 2 u + 14
= 6 u + 14
6 u + 14 = 50
6 u = 50 - 14
6 u = 36
1 u = 36 ÷ 6 = 6
Total number of sandwiches
= 1 u
= 6
Answer(s): 6