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nikitadnepr [17]
3 years ago
15

-3(10) -5y=20 Help in math

Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer:

y=-10

Step-by-step explanation:

-30-5y=20

+30 +30

------------------

-5y=50/(-5)=-10

y=-10

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Use the drop-down menus to choose steps in order to solve 5m - 8 = 3m + 8 for m.
frutty [35]

Answer:

m = 8

Step-by-step explanation:

5m - 8 = 3m + 8

-3m      -3m

2m - 8 = 8

     + 8  + 8

2m = 16

/2   /2

m = 8

Hope this helps!

8 0
3 years ago
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Answer:

26  

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Step-by-step explanation:

V = (6

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Melinda can paint 1/4 of a wall in the same time that Desiree can paint 2/5 of a wall. How much of a wall will Melinda have pain
Harlamova29_29 [7]

Answer:

Melinda will paint 5/8 part of a wall when Desiree has finished painting 1 wall.

Step-by-step explanation:

It is given that:

Melinda can paint 1/4 of a wall in the same time that Desiree can paint 2/5 of a wall.

Let 't' be the time taken by Melinda and Desiree to paint 1/4 and 2/5 of a wall respectively.

Now the time taken by Desiree to paint 1 wall will be:

2/5 of wall= t

1 wall= (5/2) t

Now in this time ( i.e. 5/2 t) the part of a wall painted by Melinda will be:

As Melinda takes--  t time to paint= 1/4 of a wall

                              5/2 t she will paint= (5/2)×(1/4) of a wall= (5/8) of a wall.

Hence Melinda will paint 5/8 part of a wall when Desiree has finished painting 1 wall.

                         

3 0
3 years ago
A person has $10,100 to invest in two different stock. Stock ABC costs $32 per share and pays dividends of $1.20 per share. Stoc
marusya05 [52]

Answer:

$ 3199.0

Step-by-step explanation:

Let the number of shares of ABC = x

and XYZ = y

writing each as a linear equation

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collect the like terms

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the amount of money to be invested in ABC shares = 99.97 × $ 32 = $ 3199.0

8 0
3 years ago
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