Question

The total number of calories in 2 hot dogs and 3 cups of cottage cheese is 990 calories. The total number of calories in 5 hot dogs and 2 cups of cottage cheese is 1,210 calories. How many calories are in a hot dog? How many calories are in a cup of cottage cheese?

Answer 1

set up a system of equation and then you can solve by either elimination, substitution, or simply via calculator

in the end a hot dog=150 cals and a cup of cottage cheese=230 cals