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klio [65]
3 years ago
7

Ten granola bars and 12 bottles of water cost $23. Five granola bars and four bottles of water cost $10. How much do one granola

bar and one bottle of water cost?

Mathematics
2 answers:
katen-ka-za [31]3 years ago
8 0
One granola bar and one bottle of water will cost 3 dollars.

This is because both a granola bar and bottle of water cost $1.50
Reptile [31]3 years ago
6 0

Answer:

The cost of one granola bar is \$1.4

The cost of one bottle of water is \$0.75

Step-by-step explanation:

Let

x------> the cost of one granola bar

y-----> the cost of one bottle of water

we know that

10x+12y=23 -----> equation A

5x+4y=10 -----> equation B  

using a graphing tool

Solve the system of equations

Remember that

The solution of the system of equations is equal to the intersection point both graphs

The intersection point is (1.4,0.75)

see the attached figure

therefore

The cost of one granola bar is \$1.4

The cost of one bottle of water is \$0.75

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