The maximum Jeff can travel is 200 miles.
Step-by-step explanation:
Capacity: 10 gallons
* his tank was already full 2/5.
* 2/5ths of ten is 4, so that’s already 4 gallons in his tank.
Let’s divide $41.90 by 10 gallons. Why? Because we need to figure out how much money he spent per gallon.
After dividing 41.90/10 we get 4.19 ($4.19). What do we do with thus number? We use it and divide it with the $16.76. This time we are dividing to figure out how many gallons Jeff purchased.
After dividing 16.76/4.19, we get the answer of 4. Jeff purchased four gallons.
Now add four gallons with the four he already had in his tank to get 8 gallons.
He gets 25 miles out of each gallon, so now you just have to multiply 25 by 8 to get 200 miles.
I hope this was clear!