Answer:
8th grade will win with 225 cans
X= 25 + (20 * 10)
7th grade will lose with 150
X= 50 + (20 * 5)
X to represent the number of cans at the end of the 20 days
Step-by-step explanation:
8th grade will have 225 can by the end of the competition while,
7th grade will have 150 cans
8th grade explantation:
20 times 10 is 200
20 days and 10 cans per day is 200 cans
200 + 25= 225
200 cans in 20 days and the 25 cans at the start is 225
7th grade explantation:
20 times 5 is 100
20 days and 5 cans per day is 100 cans
100 + 50 = 150
100 cans in 20 days and the 50 cans at the start is 150