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math :(

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Last year you mowed grass and shoveled snow for 10 households. You earned $200 per household mowing for the entire season & $180 per household for shoveling the entire season. If you earned a total of $1880 last year, how many households did you mow and shovel for?!

How would you set this up!! I know you have to do a system of equations! Thx in advance <3

  • math :( -

    M = number of mowing jobs
    S = number of snow shoveling jobs

    M + S = 10
    200M + 180 S = 1880
    ======================
    Multiply the first equation by 200
    200M + 200 S = 2000
    Subtract the last two.
    20 S = 120
    S = 6

    etc.

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