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Triss [41]
3 years ago
15

-2(5x-1) + 7(5x-1) - 3(-5x+1)

Mathematics
1 answer:
LuckyWell [14K]3 years ago
8 0
First you would distribute through the parenthesis
-10x+2+7(5x-1)-3(-5x+1)
Then distribute
-10x+2+35x-7-3(-5x+1)
And then distribute 3
-10x+2+35x-7+15x-3
Collect like terms
40x+2-7-3
40x-8 is your answer :)
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pls helpppp c=30m+50 and c=20m+100. solve for c and show your work.
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Step-by-step explanation:

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20(5) + 100 = 200

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3 years ago
Five carpenters worked 15 & 3/4, 15 & 1/4, 17 & 1/2, 12 & 1/2 and 17 & 1/2 hours respectively. What was the
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<u>The total </u><u>labor cost</u><u>  of the carpenters is $2296.91</u>

The carpenters worked 15\frac{3}{4} , 15\frac{1}{4}, 17\frac{1}{2}, 12\frac{1}{2}, 17\frac{1}{2}

<h3>Conversion of Fraction</h3>

Let's convert the mixed fraction to improper fraction

So, we would have

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  • 61/4,
  • 35/2,
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<h3>Working Cost</h3>

Let's sum it up and multiply by the working cost per hour

63/4 + 61/4 + 35/2 + 25/2 + 35/2 =78.5

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This becomes 78.5*29.26=2296.91

<u>The total labor cost is $2296.91</u>

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The sum of 10 and Hector's age is 69 . Use the variable H to represent Hector's age.
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