I need the answer for this image

Mathematics

2 answers:

Cloud [144]4 years ago

8 0

Answer:

Step-by-step explanation:

240/20 = 12

216/18 = 12

168/14 = 12

108/9 = 12

then:

the constant of proporcionality is:

olga55 [171]4 years ago

4 0

Answer:

Step-by-step explanation:

Divide the number of laps by the number of swimmers for one of the rows. I did 108/9. You can double check by doing a second row. I did it wrong the first time sorry. That’s why you double check

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-7(-2 ( 3x+1)+ 4) +9

ANTONII [103]

Answer:

correct answer is explained in the picture attached

7 0

3 years ago

Help on college algebra, question is on the picture!

kodGreya [7K]

$\frac{7x+1}{x-2} + \frac{2}{x} = \frac{-4}{ x^{2} -2x}$ is given
here , $\frac{7x+1}{x-2} + \frac{2}{x} = \frac{-4}{ x^{2} -2x}$
or, $\frac{7x^{2} +x +2x-4 }{x(x-2)} = \frac{-4}{ x^{2} -2x}$
or, $\frac{7 x^{2} +3x-4}{ x^{2} -2x} = \frac{-4}{ x^{2} -2x}$
or,7x²+3x-4=-4
or,7x²+3x=0
or,x(7x+3)=0
Either,x=0| Or,7x+3=0
|or,7x=-3
|or,x= $\frac{-3}{7}$
So , the solution set is S={0,- $\frac{3}{7}$ }