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if melissa placed an order for garden gloves ($2.99 each), and rakes (for $16.99 each), and she ordered three times as many gloves than rakes, how many rakes dis she purchase, if the sales total was $129.80?

Respuesta :

G:$2.99
R:$16.99

For every 1R we have 3G.
1R+3G=$16.99+3($2.99)
So 1R+3G=$25.96

If we take $129.80÷$25.96, we get 5.
So let's try 5.

5R+15G=5($16.99)+15($2.99)
So 5R+15G=$129.80



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