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german
3 years ago
15

Please answer correctly !!!! Will mark brainliest !!!!!!!!!!!!!!

Mathematics
2 answers:
siniylev [52]3 years ago
4 0

Answer:

I am thinking B

Step-by-step explanation:

I may be wrong

Correct me

shepuryov [24]3 years ago
4 0

Answer:

B impossible situation

Step-by-step explanation:

x = price of notebook

y = price of newspaper

40x +20y = 130 divide by 10 → 4x + 2y =13

8x + 4y =28 divide by 2 → 4x +2y = 14

there are 2 same equations with different answers so no solution

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L y l = 256<br> List 2 values of y
padilas [110]

Answer:

256, -256

Step-by-step explanation:

Absolute value simply removes the negative and does nothing to positive numbers

I think those were absolute value bars. not sure.

8 0
3 years ago
Which value of d is a solution to equation 2.2d + 5.4= 12
ryzh [129]

Hello!

<em><u>Answer:</u></em>

<em><u>d=3</u></em>

<em><u>*The answer must have a positive sign.*</u></em>

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you multiply by 10 from both sides of an equation.

2.2d*10+5.4*10=12*10

Then, you had to refine the problem down.

22d+54=120

Next, you subtract by 54 from both sides of an equation.

22d+54-54=120-54

Simplify.

22d=66

You can also divide by 22 from both sides of an equation.

\frac{22d}{22}=\frac{66}{22}

And finally, simplify and solve. You can also divide by the numbers.

66/22=3

Final answer: → d=3

Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

:D


7 0
4 years ago
Read 2 more answers
Chris can be paid in one of two ways. Plan A is a salary of
Lilit [14]

Answer

$6000

Step-by-step explanation:

Using the formulas

PLAN A

y = .09x + 350

PLAN B

y = .03 + 704

He makes $890 on plan A and only $884 on plan B

5 0
3 years ago
See the pic below please! AND SHOW WORK!
irinina [24]

Well I don't know !
Let's check out the choices:

A).    3a - 4b = 21,  a=0, b=7

         3(0) - 4(7) = 21

             0  -  28  = 21    Nope.  That's not true.


B).  3a - 4b = 21,  a=-3,  b=2

     3(-3) - 4(-2) = 21

       -9    +  8  = 21

             -1    = 21      Nope.  That's not right.


C).  3a - 4b = 21,    a=-2,  b=-3

      3(-2) - 4(-3) = 21

         -6  + 12  = 21

                 6  =  21          Nope.  That's not it.

Only one choice left.
This one had better be it:

D).  3a - 4b = 21,    a=7,  b=0

       3(7) - 4(0) = 21

         21 -  0    = 21

               21  =  21            Yay !   That's it !
 
7 0
3 years ago
Read 2 more answers
If 30.943 g of a liquid occupies a space of 35.0 ml, what is the density of the liquid?
Marysya12 [62]

Answer:

0.88 g/cm³

Step-by-step explanation:

I hope this helps! and i think this is the most straightforward and I’m the first correct answer so could you please crown me as brainliest? :D

7 0
4 years ago
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