Question

Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. Starting from a full tank, can Diego’s family drive the car for 25 days without the warning light coming on? Explain or show your reasoning.

Answer 1

Answer: no

Explanation:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
13.4 12.8 12.2 11.6 11 10.4 9.8 9.2 8.6 8 7.4 6.8 6.2 5.6 5 4.4 3.8

18 19 20 21

3.2 2.6 2 1.4

With this table, you can see that Diego and his family would only make it to 21 days before the warning light comes on.