Question

Kenny consumes a whole grain bagel and a 6 ounce orange juice for a total of 140 calories. Timmy consumes 2 whole grain bagels and 6 ounce orange juice for a total of 200 calories. How many more calories are in a 6 ounce orange juice than in a whole grain bagel?

20

40

60

68

80

Answer 1

this one is simple really..we want to set up whats called a system of equations. since we have 2 variables x= cals in bagel and y=cals in juice then we need to equations to solve this. and we have these 2 equations. they are 1x+6y=140 and 2x +6y=200

Answer 2

can you solve these

Answer 3

yep. and solve for y, right?

Answer 4

40/3

Answer 5

well i would substitute y=(140-x)/6 into the other equation, solver for x. then knowing x you can easily plug it in to get y. then if your question asks for 6 bagels or whatever just multiply your x( totals cals in bagels( by 6