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kow [346]
2 years ago
7

Solve for x: 2/7 (x-2) =4c

Mathematics
1 answer:
shutvik [7]2 years ago
8 0

Answer:

x=14c+2

Step-by-step explanation:

\frac{2}{7} (x-2)=4c \\\frac{2}{7}x-\frac{4}{7} =4c\\\frac{2}{7}x=4c+\frac{4}{7}\\\frac{2}{7}x= \frac{28c+4}{7} \\2x=28c+4\\x=14c+2

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The number a exceeds the number b by 50 percent. By what percent is the number b smaller than the number a?
inna [77]

Answer:

   33 1/3 percent smaller

Step-by-step explanation:


The number a exceeds the number b by 50 percent.

a = b + b*.5

a = b(1.5)

Divide by 1.5

a/1.5 = b

2/3a =b



We want to find (a-b)/a  to find the percent decrease

                           (a-2/3a)/a *100percent

                             (1/3a)/a* 100 percent

                                  1/3 * 100 percent

                                     33 1/3 percent smaller

5 0
2 years ago
Add the polynomials.<br><br> (x2−11x+6)+(x2+5)
Oksana_A [137]

Answer:

\boxed{2 {x}^{2}  - 11x + 11}

Step-by-step explanation:

=  > ( {x}^{2}  - 11x + 6) + ( {x}^{2}  + 5) \\  \\  =  >  {x}^{2}  - 11x + 6 +  {x}^{2}  + 5 \\  \\  =  >  {x}^{2}  +  {x}^{2}  - 11x + 6 + 5 \\  \\  =  > 2 {x}^{2}  - 11x + 11

8 0
2 years ago
Read 2 more answers
I Need HELP!<br><br>how do you figure out 22/7=5/X
Oksana_A [137]
\frac{22 }{7}= \frac{5}{x} \\ \\ x\neq 0 \\ \\ 22x=7*5\\ \\22x=35 \ \ /:22 \\ \\x=\frac{35}{22}\\ \\x=1\frac{23}{25}
5 0
3 years ago
What is the simplified form of the equation fraction 4 over 5 n minus fraction 1 over 5 equals fraction 2 over 5 n
liubo4ka [24]
4/5n – 1/5 = 2/5n
Add 1/5 to both sides
4/5n = 2/5n + 1/5
Subtract 2/5n from both sides
2/5n = 1/5
Divide both sides by 2/5

n = 1/2
8 0
3 years ago
Can someone simplify this, I just want to make sure that I’m doing what I’m doing right.
Harman [31]

Answer:

4

Step-by-step explanation:

you cant simplify a hole number

7 0
3 years ago
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