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____ [38]
3 years ago
11

2x+8=7x-12 || -m/4+5=2 || 3x-8=-17 ||

Mathematics
1 answer:
aliina [53]3 years ago
3 0
<span>2x+8=7x-12    we put the x in a side  and the number in the other side 
5x = 20 
x= 20/5 = 4

</span><span> -m/4+5=2
</span> common denominator
-m /4  + 20/4 = 2/4   
-m +20 = 2

m = 20-2 =18

<span>3x-8=-17

3x = -17 +8 

3x = -9 

x= -9/3 = -3 </span>
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lana66690 [7]

Answer:

y=\frac{13}{6}x             y= \frac{11}{5}x          y = \frac{21}{9}x          y = \frac{19}{8}x

Step-by-step explanation:

Given

The attached graph

Required

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First, calculate the unit rate of the graph

m = \frac{y_2 - y_1}{x_2 - x_1}

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(x_2.y_2) = (7,15)

So:

m = \frac{15 - 0}{7 - 0}

m = \frac{15}{7}

m = 2.143

For the given options.

The unit rate is the coefficient of x

So: y = \frac{19}{8}x

Going by the above definition of unit rate.

m = \frac{19}{8}

m = 2.375

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m = 2.077

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y= \frac{11}{5}x

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m= 2.20

y = \frac{15}{7}x

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y = \frac{31}{15}x

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m=\frac{13}{6}

m=2.167

The unit rates grater than the graph's from small to large are:

y=\frac{13}{6}x             y= \frac{11}{5}x          y = \frac{21}{9}x          y = \frac{19}{8}x

m=\frac{13}{6}              m= \frac{11}{5}           m = \frac{21}{9}            m = \frac{19}{8}

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Fiesta28 [93]

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