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Studentka2010 [4]
3 years ago
13

Two pencils and a ruler cost 98 cents in total. One pencil and 2 rulers cost $1.24 in total. Find the cost of each item.

Mathematics
2 answers:
yuradex [85]3 years ago
6 0
Answer: 2.16
6(2p)+15p=2.16
12p+15p=2.16
27p=2.16
salantis [7]3 years ago
5 0

Answer:

2.16

Step-by-step explanation:

r = cost of ruler

p = cost of pencil

 

r = 2p

6r + 15p = 2.16

 

Substitute 2p in place of r in 2nd equation and solve for p

 

6(2p) + 15p = 2.16

12p + 15p = 2.16

27p = 2.16

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