Sally spent $14.85 to buy 13 flowers. She bought lilies, which cost $1.25 each and tulips, which cost $.90 each. How many of each flower did Sally buy?

Question

Algebra 1

Answer 1

Hi James, 

Step One: Create Let Statements

Let x= the number of lilies

Let 13-x= the number of tulips

Step Two: Create an Equation

14.85=1.25x+.90(13-x) Distribute

14.85=1.25x+11.7-.90x Combine like terms

14.85=11.7+0.35x Subtract 11.7 from both sides

3.15=0.35x Divide both sides by 0.35

9=x

∴There are 9 lilies and 4 tulips.

Best, 

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