Answer:
Explanation:
Large boxes- l, small boxes - s,
Equations based on the given numbers:
- 3l + 5s = 79
- 12l + 2s = 199
Solve the system by elimination, multiply the first equation by 4 and subtract the second one:
- 4(3l + 5s) - 12l - 2s = 4*79 - 199
- 12l + 20s - 12l - 2s = 117
- 18s = 117
- s = 117/18
- s = 6.5
Find the value of l:
- 3l + 5(6.5) = 79
- 3l = 79 - 32.5
- 3l = 46.5
- l = 46.5/3
- l = 15.5