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 ;)
Kristine bought 12 roses . This was found by subtracting the cost of the vase from the total spent and then dividing by the cost of one rose. ;
Kristine bought 12 roses after calculating the total cost based on the price of the vase and the roses. By setting up the equation 5.99 + 1.25 r = 20.99 and solving for 'r', we found that r equals 12. The totals check out, confirming that the answer is correct.
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