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vesna_86 [32]
2 years ago
12

Write and solve the equation. Show all work.

Mathematics
1 answer:
ozzi2 years ago
4 0

Answer:

27

Step-by-step explanation:

57 - 3 = 54. 54/2 = 27.

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Solve by graphing <br><br> u=v and 6u=2v-24
Vadim26 [7]

Answer:

u=-6 \\ \\ v=-6

Step-by-step explanation:

In this exercise, we have two equations, namely:

u=v \ and \ 6u=2v-24

And we are asked to solve this problem by graphing. In this way, we can write a system of linear equations in two variables, but first of all, let's rewrite:

u=y \\ \\ v=x

Then:

\left\{ \begin{array}{c}y=x\\6y=2x-24\end{array}\right.

So here we have two lines.

The first one is:

\boxed{y=x}

This line passes through the origin and has a slope m=1

The second one is:

6y=2x-24 \\ \\ \therefore y=\frac{2x-24}{6} \\ \\ \therefore \boxed{y=\frac{1}{3}x-4}

This line has a slope m=\frac{1}{3} and cuts the y-axis at b=-4

By using graph tools, we get the graph shown below, then:

x=-6 \\ \\ y=-6 \\ \\ \\ Since \ u=y \ and \ v=x, then: \\ \\ u=-6 \\ \\ v=-6

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3 years ago
Harry is half as old as Mort. Mort is seven years older than Harry. How old is each boy?
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Harry is 7 Mort is 14
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Rewrite y = 2x + 1 in function notation.
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Answer:

both answers are pictures below

Step-by-step explanation:

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A sign says that the price marked on all music equipment is 30% off the original price. You buy an electric guitar for the sale
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Step-by-step explanation:

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