jacobmclawhorn3001
22.08.2019 •
Mathematics
Jaime bought 2 puzzles for $5.00 and 3 puzzles for $7.50. write and solve an equation to find the cost of 15 puzzles. tell what the variables represent.
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Ответ:
3= $7.50
15= x
1 puzzle= $2.50
so, 15 puzzles= $37.50
2x=5.00; 2/2x= 5.00/2; x= 2.50
3x= 7.50; 3/3x= 7.50/3; x= 2.50
15*x= 15x; 15*2.50= 37.50
Ответ:
17
Step-by-step explanation:
45 - 28
Hope this helps