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Elodia [21]
2 years ago
9

School pennants cost $18 each. Ms. says she will pay $146 for 7 pennants. Is this a fair price?

Mathematics
2 answers:
Temka [501]2 years ago
6 0
No it is not each pennant cost 18$ 18*7= 126  
she payed 146 that would be 18.25 per pennant  so no it is not a fair price
lilavasa [31]2 years ago
3 0
Hi , the answer is no , because 7 pennants cost  126 dollars , she is paying more .
18 times 7 equals to 126
she is paying more , 20 dollars more.
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The correct option is A, which is {(5/7, 12/7)}.

<h2>Given to us,</h2>

equation 1, 5x + 2y = 7,

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<h3>substituting,</h3>

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Now, we have the value of x, substitute the value in equation 2, to get y,

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Taking LCM,

y=\frac{5+(1\times 7)}{7}  \\y= \dfrac{12}{7}

Hence, the correct option is A, which is {(5/7, 12/7)}.

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