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artcher [175]
3 years ago
14

Write five expressions that are equivalent to 20x+100

Mathematics
1 answer:
Phoenix [80]3 years ago
4 0
4(5x+25)
5(4x+20)
10(2x+10)
2(10x+50)
20(x+5)

hope this helps
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Can someone help me plz!!! I would appreciate it ❤️
kolezko [41]

Answer:

25% because 75% receive anywhere between $10-$20. If 75% receive this amount than 25% don't.

Step-by-step explanation:

100% is the whole if you subtract 75% from 100% you get 25% left over. Hope this helps

7 0
2 years ago
HELP ME QUICK PLEASEEEE solve for x: 2/x-2+7/x^2-4=5/x
Anna35 [415]

 

\displaystyle\\\\\frac{2}{x-2}+\frac{7}{x^2-4}=\frac{5}{x}\\\\\frac{^{x+2)}2~~~~~}{x-2}+\frac{7}{(x-2)(x+2)}=\frac{5}{x}\\\\\frac{2(x+2)}{(x-2)(x+2)}+\frac{7}{(x-2)(x+2)}=\frac{5}{x}\\\\\frac{2x+4+7}{x^2-4}=\frac{5}{x}\\\\\frac{2x+11}{x^2-4}=\frac{5}{x}\\\\5(x^2-4)=x(2x+11)\\\\5x^2-20=2x^2+11x\\\\5x^2-2x^2 -11x-20=0


\displaystyle\\3x^2-11x-20=0\\\\x_{1,2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{11\pm\sqrt{121+4\cdot3\cdot20}}{2\cdot3}=\\\\=\frac{11\pm\sqrt{121+240}}{6}=\frac{11\pm\sqrt{361 }}{6}=\frac{11\pm19}{6}\\\\x_1=\frac{11-19}{6}=\frac{-8}{6}\\\\\boxed{\bf x_1=-\frac{4}{3}}\\\\x_2=\frac{11+19}{6}=\frac{30}{6}\\\\\boxed{\bf x_2=5}




3 0
3 years ago
The line through (6,-6) with slope 1/2 in point-slope form ?
aleksandrvk [35]

Answer: y + 6 = \frac{1}{2}(x - 6)

Step-by-step explanation:

Point-slope formula:  y - y1 = m(x - x1)

Plug in the numbers: y - -6 = \frac{1}{2}(x-6)

Clear the double negatives: y + 6 = \frac{1}{2}(x - 6)

8 0
2 years ago
243^-y=(1/243)^3y*9^-2y<br><br><br> a.) y=-1<br> b.) y=0<br> c.) y=1<br> d.) no solution
allochka39001 [22]
243^{-y}=(\frac{1}{243})^{3y}\times 9^{-2y} has y = 0 as a solution.

Selection B is appropriate.
8 0
2 years ago
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Step-by-step explanation:

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