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Sladkaya [172]
2 years ago
6

Sam paid $8.28 for 18 stamps.at this rate,how much would it cost Sam to buy 12 stamps

Mathematics
2 answers:
Charra [1.4K]2 years ago
6 0
$5.52 @ 46 cents a stamp
allsm [11]2 years ago
3 0

Answer: It costs $5.52 to Sam to buy 12 stamps.


Step-by-step explanation:

Given: Sam paid $8.28 for 18 stamps.

Thus, the cost of 18 stamps = $8.28

Then the cost of 1 stamp=\frac{8.28}{18}

Thus, the cost of 1 stamp=$0.46

With the same rate , the cost of 12 stamps=0.46\times12

Therefore, the cost of 12 stamps= $5.52

hence, it costs $5.52 to Sam to buy 12 stamps.

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Blizzard [7]
No solution means that the lines are paralell and have differnt y intercepts

paralell means has same slope

y=mx+b
m=slope
b=yint

given equation is
y=-3x+5
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paralell so
y=-3x+b
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example
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m=-3
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7 0
3 years ago
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3 years ago
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3 years ago
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