Question

a fish tank holds 108 gallons of water and is losing water at a rate of 5 gallons per day. A second fish tank contains 45 gallons of water and is having 4 gallons added per day. after how many days ,x, will the two fish tanks have the same amount of water

Answer 1

It’ll take 7 days for both tanks to have the same amount of water.

Day 1
108 - 5 = 103
45 + 4 = 49

Day 2
103 - 5 = 98
49 + 4 = 53

Day 3
98 - 5 = 93
53 + 4 = 57

Day 4
93 - 5 = 88
57 + 4 = 61

Day 5
88 - 5 = 83
61 + 4 = 65

Day 6
83 - 5 = 78
65 + 4 = 69

Day 7
78 - 5 = 73
69 + 4 = 73