You are buying snacks for your friends at the movies. You are given $ 17 to spend and chocolate bars cost $ 2 while bags of popcorn cost $

Question

You are buying snacks for your friends at the movies. You are given $ 17 to spend and chocolate bars cost $ 2 while bags of popcorn cost $ 3. You need to buy 7 snacks (one for each of your 6 friends plus 1 for you). How many chocolate bars should you buy? How many bags of popcorn should you buy? (Define your variables and solve for them)

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Xavia 1 day 2021-07-22T17:29:19+00:00 2 Answers 2 views 0

Answers ( )

    0
    2021-07-22T17:30:32+00:00

    Answer:  7 chocolate bars and 1 bag of popcorn

    0
    2021-07-22T17:30:34+00:00

    Answer:

    4 chocalate, and 3 bags

    Step-by-step explanation:

    2x+3y=17

    x+y=7

    x=7-y

    2(7-y)+3y=17

    14-2y+3y=17

    14+y=17

    y=3

    x+3=7

    x=4

    You should buy 4 chocalate bars, and 3 bags of popcorn.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )