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aev [14]
3 years ago
6

margo can purchase tile at a store for $0.79 per tile and rent a tile saw for $24.At another store she can barrow the tile saw f

or free if she buys tiles there for $1.19 per tile. How many tiles must she buy for the cost to be the same at both stores?
Mathematics
2 answers:
Flura [38]3 years ago
8 0
T=number of  tiles bought
cost at store 1 is 0.79t+24
cost at store 2 is 1.19t

when will be equal cost?

0.79t+24=1.19t
minus 0.79t from both sides
24=0.4t
divide both sides by 0.4
60=t

answer is 60 tiles
Elodia [21]3 years ago
3 0
24 + 0.79t = 1.19t
24 = 1.19t - 0.79t
24 = 0.40t
24/0.40 = t
60 = t

they will be equal at 60 tiles
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