Opal bought sandwiches at the prices as shown. Opal spent an equal amount of money on the peanut butter and salmon sandwiches.
| Sandwiches Prices |
| Peanut butter |
$1.80 |
| Salmon |
$4.20 |
- What fraction of the sandwiches Opal bought were salmon sandwiches?
- How much did Opal spend altogether?
(a)
Multiples of 4.2: 4.2, 8.4, 12.6
Multiples of 1.8: 1.8, 3.6, 5.4, 7.2, 9, 10.8,
12.6 Opal bought 7 peanut butter sandwiches and 3 salmon sandwiches since she spent equal amounts on each type.
Salmon sandwichesTotal sandwiches =
37 + 3 =
310 (b)
Amount that Opal spent altogether
= 2 x 12.60
= $25.20
Answer(s): (a)
310; (b) $25.20
