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3 years ago

I'm not good with ordering fractions from smallest to largest. Can help anyone help with this problem?

Mathematics

1 answer:

ziro4ka [17]3 years ago

3 0

5/8,4/6,3/4,1/2 this is the answer without simplifying

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Please solve the problem

jek_recluse [69]

Treat the matrices on the right side of each equation like you would a constant.

Let 2X + Y = A and 3X - 4Y = B.

Then you can eliminate Y by taking the sum

4A + B = 4 (2X + Y) + (3X - 4Y) = 11X

==> X = (4A + B)/11

Similarly, you can eliminate X by using

-3A + 2B = -3 (2X + Y) + 2 (3X - 4Y) = -11Y

==> Y = (3A - 2B)/11

It follows that

$X=\dfrac4{11}\begin{bmatrix}12&-3\\10&22\end{bmatrix}+\dfrac1{11}\begin{bmatrix}7&-10\\-7&11\end{bmatrix} \\\\ X=\dfrac1{11}\left(4\begin{bmatrix}12&-3\\10&22\end{bmatrix}+\begin{bmatrix}7&-10\\-7&11\end{bmatrix}\right) \\\\ X=\dfrac1{11}\left(\begin{bmatrix}48&-12\\40&88\end{bmatrix}+\begin{bmatrix}7&-10\\-7&11\end{bmatrix}\right) \\\\ X=\dfrac1{11}\begin{bmatrix}55&-22\\33&99\end{bmatrix} \\\\ X=\begin{bmatrix}5&-2\\3&9\end{bmatrix}$

Similarly, you would find

$Y=\begin{bmatrix}2&1\\4&4\end{bmatrix}$

You can solve the second system in the same fashion. You would end up with

$P=\begin{bmatrix}2&-3\\0&1\end{bmatrix} \text{ and } Q=\begin{bmatrix}1&2\\3&-1\end{bmatrix}$

3 0

3 years ago

What is the value of x in the expression, x 2 = 9? Type the NUMBER in the box below.

alekssr [168]

The value of x in the expression, x 2 = 9 is 4.5

9 divided by 2 = 4.5

7 0

2 years ago

Which is the value of x? X=16 X=29 X=44 X=46

Dahasolnce [82]

Answer:

x = 16

I hope this helps!

5 0

3 years ago

Read 2 more answers

Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2

Marizza181 [45]

No, she did not use the distributive property correctly.

3 0

3 years ago

Read 2 more answers

A company gives raises once a year. Amir's present salary is $12,000. His manager would like to raise Amir's salary to $84,000.

krek1111 [17]

Since $12,000 would be her whole current salary, I would just divide $84,000 by $12,000 because i know 12 can go into 84 evenly.

84,000 ÷ 12,000 = 7

Since it goes in to 84,000 evenly by 7 times, the raise would be 700%.

6 0

3 years ago