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16 February, 15:08

8. Caitlin had $402 in her bank account. She withdrew $15 each week to pay for a swimming lesson. She now has $237.

a. Write an equation that can be used to find the number of swimming lessons that she paid for.

b. Find the number of swimming lessons she paid for.

c. The cost of a swimming lesson rises to $19. How many lessons can she pay for with the remaining $237?

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  1. 16 February, 17:17
    0
    S=number of swim lessons

    A.) The equation is 237 = 402-15s

    237 = 402 - 15s

    -402 = - 402

    -165 = - 15s

    /-15 = / -15

    11 = s

    B.) 11 swim lessons.

    C.) 0 = 237 - 19s

    -237 = - 237

    -237 = - 19s

    /-19 = / -19

    12.47368 = s

    She can pay for 12 more swim lessons and will have some money left in her account.
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Home » Mathematics » 8. Caitlin had $402 in her bank account. She withdrew $15 each week to pay for a swimming lesson. She now has $237. a. Write an equation that can be used to find the number of swimming lessons that she paid for. b.
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