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yulyashka [42]
3 years ago
12

Y=3x+18 -12x+4y=-24 linear system of equations

Mathematics
1 answer:
solong [7]3 years ago
7 0

Answer:

Step-by-step explanation:

Use substitution, y=3x+18 so -12x+4(3x+18)=-24. From here you can try to solve for x

-12x+12x+72=-24

The xs cancel, which leaves you with 72=-24

Since 72 cannot equal -24 there is no answer to this system of equations

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Nesterboy [21]

Answer:

y-4=\frac{1}{5}(x-7)

Step-by-step explanation:

The point-slope form of a line is given by:

y-y_1=m(x-x_1)

Where

(x_1,y_1) is the coordinate pair (any of the points given)

m is the slope. The ratio of change in y coordinates by x coordinates

Let's calculate the slope:

m=\frac{4-3}{7-2}\\m=\frac{1}{5}

Now, it is given "y - 4", so y_1 is 4, so they are using the coordinate pair (7,4). So we can say x_1 = 7

Now we have all the values, lets write the equation:

y-y_1=m(x-x_1)\\y-4=\frac{1}{5}(x-7)

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3 years ago
A woman at your company saves 10% of her salary.what fraction of her salary doe she save?
elena55 [62]
She saves 1/10 of her salary. That's the simplified version, it can also be written 10/100. Fractions, decimals, and percentages are all interchangeable.
5 0
4 years ago
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Anna [14]

Answer:

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Step-by-step explanation:

Theatre A:

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Answer:

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Step-by-step explanation:

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