John can eat 10 hot dogs in 4 mins. At this rate, how many hot dogs can he eat in 18 mins?

It deals with proportions. You put hotdogs over minutes.

Like 10 hotdogs over 4 minutes because that's how long it took to eat those hotdogs.

Then put 18 minutes on the bottom of the next fraction.

Then you cross multiply.

10 x 18 which equals 180.

Then you divide. 180/4

Which equals 45 hotdogs.

He ate 45 hotdogs in 18 minutes.

10 hotdogs in 4 minutes

45 hotdogs in 18 minutes.

He eats 7 and a half in 18 minutes