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Sagot :
Answer:
1 notebook=$30.7
1 thumb drive =$12.2
Explanation:
Let x represent the number of notebooks and y represent the number of thumb drives.
4x+5y = $116 ................1
2x+3y = $68..................2
4x+2x=$116+$68
6x=184
[tex] \frac{6x}{6} = \frac{184}{6} \\ \\ x = \frac{92}{3}[/tex]
Therefore, the cost of each notebook=30.66
=$30.7
2x+3y=$68
2(30.7)+3y =$68
$31.4+3y=$68
3y=$68 - $31.4
3y=36.6
[tex] \frac{3y}{3} = \frac{36.6}{3} \\ y = \frac{36.6}{3} = 12.2[/tex]
Therefore, the cost of each thumb drive = $12.2
Proof
2(30.7)+3(12.2)=$68
31.4+36.6=$68.0
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