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Alex777 [14]
3 years ago
8

A student received a coupon for 17% off the total purchase price at a clothing store. Let c be the

Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0
C - 0.17c = 0.83c
When you write “c” at the start, or x or whatever, it has an understood (invisible) number 1. So you’re subtracting the decimal on the next variable from 1.
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Which of the following is a solution to the equation x - 5/7 = -3/7
podryga [215]

Solve the equation:

          5              3
x  –  ——  =  –  ——
          7              7


           5
Add  ——  to both sides, so you get  x  isolated at the left-hand side:
           7

          5          5               3          5
x  –  ——  +  ——  =  –  ——  +  ——
          7           7              7           7

              3          5
x  =  –  ——  +  ——
              7           7


Now, add those fractions at the right-hand side of the equation:

          – 3 + 5
x  =  —————
               7

          2
x  =  ——     <———    this is the answer (first option:  2/7).
          7


I hope this helps. =)

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What percent of 56 is 19.6
blsea [12.9K]
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Answer:

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Step-by-step explanation:

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Convert the fraction into a decimal number.<br><br> 1.14286...<br> 0.875<br> 0.8...
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