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3 years ago

Give two ways to write each alegebric expression in words m-9

Mathematics

1 answer:

dusya [7]3 years ago

4 0

Answer:

m-9

-9+m

Step-by-step explanation:

m-9

The one way is the way it is given in the problem m minus nine

However it can also be written by interchanging the position of each term , but while interchanging we have to carry their sign along with them also.

Hence m can be taken on the left but with its + sign

and 9 can be taken in the right but with its sign that is -

Hence

m-9 can also be written as

-9+m

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grin007 [14]

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3 years ago

6x-4y=-15 and x-4y=1

Harlamova29_29 [7]

Answer:

The solution to the given system of equations is

( $-\frac{16}{5}$ , $-\frac{21}{20}$ )

Step-by-step explanation:

Given system of equation are

$6x-4y=-15\hfill (1)$

$x-4y=1\hfill (2)$

To solve equation by using elimination method

Now subtracting equations (1) and (2)

$6x-4y=-15$

$x-4y=1$

_________________

5x=-16

$x=-\frac{16}{5}$

Substitute $x=-\frac{16}{5}$ in equation (1)

$6(-\frac{16}{5})-4y=-15$

$-\frac{96}{5}-4y=-15$

$-4y=-15+\frac{96}{5}$

$-4y=\frac{21}{5}$

$y=-\frac{21}{20}$

Therefore the solution is

( $-\frac{16}{5}$ , $-\frac{21}{20}$ )

4 0

3 years ago

you are buying a new printer and a new scanner for your computer and you cannot spend over $150. The printer you want costs $80.

ira [324]

It is given in the question that

You are buying a new printer and a new scanner for your computer and you cannot spend over $150. The printer you want costs $80.

Let the price of scanner be $ x .

So we have

$x+ 80\leq 150$

Subtracting 80 from both sides

$x\leq 70$

It means , the price should be not more then $70 .

Therefore in case, the price of scanner is $75, then you will not remain within your budget .

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3 years ago

How do you compare 77,392 67,993

S_A_V [24]

Answer: 77,392 is bigger

Step-by-step explanation:

We obviously know 77,000 is bigger 67,000. Just looking at the thousands place we can tell which number is bigger. We can also write this as 77,392 > 67,993.

Hope this helps :)

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3 years ago

Elias and Niko are polishing the silver at the heritage museum. Elias could polish all the silver himself in 40 minutes. That ta

stepan [7]

Answer:

We let x be the number of hours both could the job together.

The fraction of the job done by Elias is

x/40

The fraction of the job done by Niko is

x/50

Together they would be able to finish the job

x/40 + x50 = 1

x = 1 / (1/40 + 1/50)

x = 22.22 min

Step-by-step explanation:

7 0

3 years ago

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Give two ways to write each alegebric expression in words m-9​

Give two ways to write each alegebric expression in words m-9