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kakasveta [241]
3 years ago
14

Suppose you bought supplies. Three rolls of streamers and 15 party hats cost $30. Later, you bought 2 rolls of streamers ad 4 pa

rty hats for $11. Solve a system of equations to determine the cost of streamers and party hats, find their costs.
Mathematics
1 answer:
Zolol [24]3 years ago
6 0
Since 30÷15 is 2 you now know each party hat is 2 dollars. Now we know that and we can easily find out how much a roll of streamer is. 11-(4x2)=3. 3÷2=1.5. One roll of streamer is $1.50 and one party hat is $2. I'm pretty sure I did this right lol I hope it helps
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