Shannon paid $6 for 6 croissants and 3 pizzas. A pizza cost thrice as much as a croissant.
- Find the cost of a croissant in cents.
- How much more did she pay for a pizza than a croissant?
| |
Croissants |
Pizzas |
Total |
| Number |
6 |
3 |
|
| Value |
1 u |
3 u |
|
| Total value |
6 u |
9 u |
15 u |
(a)
Cost of 1 croissant = 1 u
Cost of 1 pizza = 3 u
Cost of 6 croissants
= 6 x 1 u
= 6 u
Cost of 3 pizzas
= 3 x 3 u
= 9 u
Total cost of 6 croissants and 3 pizzas
= 6 u + 9 u
= 15 u
$1 = 100¢
$6 = 6 x 100 = 600¢
15 u = 600
1 u = 600 ÷ 15 = 40
Cost of a bun
= 1 u
= 40¢
(b)
Amount that Shannon paid more for a pizza than a croissant
= 6 u - 1 u
= 5 u
= 5 x 40
= 200¢
200¢ = $2
Answer(s): (a) 40¢ (b) $2
