jackson loves to take day trips during weekends. last weekend, he drove 80 miles to crabclaw beach. he used…
jackson loves to take day trips during weekends. last weekend, he drove 80 miles to crabclaw beach. he used 4 gallons of gas to get there. this weekend, he will drive 100 miles to get to mount highmore. if he uses gas at the same rate, how many gallons of gas will jackson use to get to mount highmore? gallons
Answer
Explanation:
Step1: Calculate gas - mileage rate
The gas - mileage rate is the number of miles driven per gallon of gas. Last weekend, Jackson drove 80 miles using 4 gallons of gas. The rate $r$ is given by the formula $r=\frac{\text{miles}}{\text{gallons}}$. So, $r = \frac{80}{4}=20$ miles per gallon.
Step2: Calculate gallons for new trip
This weekend, he will drive 100 miles. Let the number of gallons be $g$. Since the rate $r = 20$ miles per gallon and $r=\frac{\text{miles}}{\text{gallons}}$, we can solve for $g$ using the formula $g=\frac{\text{miles}}{r}$. Substituting miles = 100 and $r = 20$, we get $g=\frac{100}{20}=5$ gallons.
Answer:
5