One coffee shop bought 249 kg of chicken and venison.
14 of the chicken and
37 of the venison were sold. The amount of venison sold was 9 kg more than the amount of chicken sold.
- How much venison did the coffee shop buy?
- How much chicken did the coffee shop buy?
|
Chicken |
Venison |
Total |
Before |
4x3 = 12 u |
7 u |
+ 21 |
249 |
Change |
- 1x3 = - 3 u |
- 3 u |
- 9 |
|
After |
3x3 = 9 u |
4 u |
+ 12 |
|
(a)
9 ÷ 3 x 7 = 21
9 ÷ 3 x 4 = 12
Total mass of chicken and venison bought
= 12 u + 7 u + 21
= 19 u + 21
19 u + 21 = 249
19 u = 249 - 21
19 u = 228
1 u = 228 ÷ 19 = 12
Mass of venison bought
= 7 u + 21
= 7 x 12 + 21
= 84 + 21
= 105 kg
(b)
Mass of chicken bought
= 12 u
= 12 x 12
= 144 kg
Answer(s): (a) 105 kg; (b) 144 kg