2 years ago

Solve for x. A. 5 B.7 OC. 6 OD. 8 3 X 5 4

Mathematics

1 answer:

spayn [35]2 years ago

7 0

Answer:

Step-by-step explanation:

$5(5+3)=4(x+4) \\ \\ 40=4(x+4) \\ \\ 10=x+4 \\ \\ x=6$

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Write the equation of the line that passes through the points (-1,-4) and (9,-5).

Vera_Pavlovna [14]

Answer:

The equation in point-slope form is: $y+4=\frac{-1}{10}(x+1)$

Step-by-step explanation:

Write the equation of the line that passes through the points (-1,-4) and (9,-5).

The point slope form is: $y-y_1=m(x-x_1)$

Where m is slope and x₁ and y₁ are the points given

Finding Slope

Slope can be found of given points using formula: $Slope=\frac{y_2-y_1}{x_2-x_1}$

We have $x_1=-1, y_1=-4, x_2=9, y_2=-5$

Putting values and finding slope

$Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-5-(-4)}{9-(-1)}\\ Slope=\frac{-5+4}{9+1}\\ Slope=\frac{-1}{10}$

So, slope m = -1/10

Using point (-1,-4) and slope m = -1/10 the equation is:

$y-y_1=m(x-x_1)\\y-(-4)=\frac{-1}{10}(x-(-1))\\y+4=\frac{-1}{10}(x+1)$

So, the equation in point-slope form is: $y+4=\frac{-1}{10}(x+1)$

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A water cooler fills 150 glasses in 30 minutes. How many glasses of water can the cooler fill per minute?

atroni [7]

5 per minute
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Need help with this math problem

faltersainse [42]

Answer:

choice 2) x+2y+3 = 7

Step-by-step explanation:

equation to match:

x+2y = 4

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x+2y+3 = 7 (which is the same as choice 2, x+2y+3 = 7)

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the answer to this problem is either 5 or -5

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chubhunter [2.5K]

Answer:

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Step-by-step explanation:

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