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18 September, 13:23

Kristine bought a vase that cost $5.99 and roses that cost $1.25 each. the total cost was $20.99. write and solve the equation to find how many roses Kristine bought.

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  1. 18 September, 15:59
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    20.99=5.99+1.25r (r = roses)

    -5.99 - 5.99

    15=1.25r divide by 1.25 since they multiply to get the r alone

    1.25 1.25

    12=r so she bought 12 roses

    (to check if its right just plug in your answer 12 where your r is and you should get 15

    ; )
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