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Papessa [141]
3 years ago
9

9 folders cost $2.50 9 notebooks cost $4 write equivalent expressions and then find the total cost

Mathematics
1 answer:
Leokris [45]3 years ago
8 0
$2.50(f) + $4(n) = Total Cost

$2.50(9) + $4(9) = Total Cost

$22.50 + $36 = Total Cost

$58.50 = Total Cost
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step by step

\frac{1}{2} x -  \frac{3}{4}  = \frac{3}{8}  -  \frac{5}{8} \\  \frac{1}{2} x = \frac{3}{8}  -  \frac{5}{8} +  \frac{3}{4}  \\  \frac{1}{2} x = \frac{3}{8}  -  \frac{5}{8} +  \frac{6}{8}  \\  \frac{1}{2}x =   \frac{4}{8}  \\  \frac{1}{2} x =  \frac{1}{2}  \\ x = 1

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I believe the answer is Chord AB
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