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Mariana [72]
3 years ago
11

PLZ HELP NO ONE HAS BEEN ABLE TO HELP ME

Mathematics
1 answer:
madam [21]3 years ago
7 0

6 - 2(x - y) = 3x + 5 \\ 6 - 2x + 2y = 3x + 5  \\6 - 5 = 3x + 2x - 2y \\  1 = 5x - 2y \\ 5x - 2y = 1
So; the answer is: A. 5x-2y=1
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The answer is C because the statement would be if A is true then B is true. Hope this helps
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Two mechanics Worked on a car The first mechanic charge $55 per hour The second mechanic charge $80 per hour the mechanics work
Tems11 [23]

a = hours worked by the first mechanic

b = hours worked by the second mechanic.

since the first mechanic charges $55 per hour, then for "a" hours that'd be a total of 55*a or 55a, likewise, for the second mechanic that'd be a total charge of 80*b or 80b.

we know all hours combined are 15, so then a + b = 15.

we also know that all charges combined are $950, so 55a + 80b = 950.

\bf \begin{cases} a+b=15\\ \boxed{b}=15-a\\ \cline{1-1} 55a+80b=950 \end{cases}\qquad \qquad \stackrel{\textit{substituting on the 2nd equation}}{55a+80\left( \boxed{15-a} \right)=950} \\\\\\ 55a+1200-80a=950\implies -25a+1200=950\implies -25a=-250 \\\\\\ a=\cfrac{-250}{-25}\implies \blacktriangleright a = 10\blacktriangleleft \\\\\\ \stackrel{\textit{since we know that}}{b=15-a\implies }b=15-10\implies \blacktriangleright b=5 \blacktriangleleft

5 0
3 years ago
A snail travels 3 1/3 ft every hour. How far does the snail travel in 2 1/2 hours? Express your answer in simplest form. A. 6 1/
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Answer: 8 1/3 I believe


Step-by-step explanation:


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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
The measure of an angle is 157º. What is the measure of its supplementary angle?
elena-s [515]

Answer:

23 degrees

Step-by-step explanation:

Supplementary means they add to 180. Therefore if you subtract this angle from 180, it will give you the other angle.

180 - 157 = 23

3 0
3 years ago
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