Buns are sold in Jean Bakery at the prices as shown:
1 blueberry bun $2.50
1 strawberry bun $2.30
MrsSong bought 4 more strawberry buns than blueberry buns from this bakery. She paid $14 in total. How many buns did Mrs Song buy altogether?
|
Blueberry buns |
Strawberry buns |
Total buns |
Number |
1 u |
1 u + 4 |
|
Value |
2.50 |
2.30 |
|
Total value |
2.5 u |
2.3 u + 9.2 |
4.8 u + 9.2 |
Amount that Mrs Song paid for blueberry buns
= 1 u x 2.50
= 2.5 u
Amount that Mrs Song paid for strawberry buns
= 2.30 x (1 u + 4)
= 2.3 u + 9.2
Total amount that Mrs Song paid
= 2.5 u + 2.3 u + 9.2
= 4.8 u + 9.2
4.8 u + 9.2= 14
4.8 u = 14 - 9.2
4.8 u = 4.8
1 u = 4.8 ÷ 4.8 = 1
Number of buns that Mrs Song bought altogether
= 2 u + 4
= 2 x 1 + 4
= 2 + 4
= 6
Answer(s): 6