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4 years ago

How do you work this problem out Y+1/2=7/10

Mathematics

1 answer:

ch4aika [34]4 years ago

4 0

Y= 1/5, this is because 1/2 is 5/10 and 1/5 is 2/10, therefore 5/10 + 2/10= 7/10

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Which matrix equation represents the system of equations? {-x+ 2y = 0 y= -2

Snowcat [4.5K]

We are given a system of equations,

$\begin{cases}-x+2y=0\\y=-2\\ \end{cases}$

This will translate into a 2x2 matrix of coefficients (because 2 equations and 2 unknowns),

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}$

The matrix will then be applied to the vector (lower dimensions on top),

$\begin{bmatrix}x\\y\\ \end{bmatrix}$

And the result vector will be whats on the other side of equals sign,

$\begin{bmatrix}0\\-2\\ \end{bmatrix}$

So to put everything together,

$\begin{bmatrix}-1&2\\0&1\\ \end{bmatrix}\begin{bmatrix}x\\y\\ \end{bmatrix}=\begin{bmatrix}0\\-2\\ \end{bmatrix}$

Hope this helps :)

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3 years ago

Solve the inequality 2(p – 7) > 8

Alekssandra [29.7K]

Do it as an equation:
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5 0

3 years ago

Read 2 more answers

5/8 - 4/5 subtract as indicated and express your answer in lowest terms

Nitella [24]

Answer:

-7/40

Step-by-step explanation:

5/8 - 4/5

~Find common denominators

25/40 - 32/40

~Subtract

-7/40

Best of Luck!

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3 years ago

Use the number line to plot –3, 1, and 3. Which statements are true? Select all that apply.

kodGreya [7K]

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Step-by-step explanation:

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3 years ago

Solve the system of equations using any method.

fenix001 [56]

In addition or subtraction?
Y+8=4
Y-12=2x-8
+12
—————-
Y=2x+14

8 0

4 years ago