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.
a. Starting from a full tank, can Diego's family drive the car for 14 days without the warning
ight coming on? Explain or show your reasoning.
b. 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.
c. Diego says the expression 14 -0.6t helps him understand this situation. In this situation,
what does this expression represent, and what does the variable t stand for?
d. Write and solve an equation to determine the number of days Diego's father can drive the
car without the warning light coming on.
e. Write and solve an inequality that represents the number of days driven without the
warning light coming on. Explain clearly what the solution to
the inequality means in
the
context of this situation.
