John went to a vending machine and bought 2 bags of chips and 2 Powerades for $3.50. He then went back to the same vending machine and bought another bag of chips and 3 Powerades for $3.75. How
much does a bag of chips cost, how much does a Powerade cost?

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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step-by-step explanation:

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation:

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.