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Stels [109]
3 years ago
5

Plz, Help me with this!!!! Plz, Help me with this!!!!

Mathematics
2 answers:
Kazeer [188]3 years ago
6 0

Answer:

-3x-4

Step-by-step explanation:

first you add 5x and -8x to get -3x, then you get -4.

Maslowich3 years ago
3 0

Answer:

-3x+2

Step-by-step explanation:

Since it's addition you just combine all like terms so,

5x+4

-8x-2

= -3x+2

You might be interested in
Find an odd number with 3 digits such that all the digits are different and add up to 15. The difference between the first two d
Serjik [45]

Answer:

The three digit number = 951

Step-by-step explanation:

Let suppose the numbers are:

= abc

According to given condition:

a+ b + c = 15  -------------eq1

Also, given the difference between the first two digit = the difference between the last two digits:  

==> l a-b l = l b-cl  

==> (a-b) = (b-c)  

==> (a+c) = 2b

Now we will substitue in eq1

==> a+ b + c = 15

==> 2b + b = 15

==> 3b = 15

Dividing both sides by 3 we get:

b =5

a + c = 2b

a+ c = 10

a = 10 -c ..........(2)

We know that"  

(a-b) = (b-c)

==> a > b+c

==> a > 5 + c

==> 10 -c > 5 +c  

==>5 > 2c

==> 2.5 > c

As c is an odd number so c will be equal to 1

c = 1

a = 10 -1

a = 9

The three digit number = 951

The hundred digit is greater than the sum of the tens and ones digits

i hope it will help you!

6 0
3 years ago
Help me plzz.....................
Ierofanga [76]
This is Transitive Property. 

Blame me if you get it wrong :\
6 0
3 years ago
PLS ANSWER WILL MARK BRAINLIST
andreyandreev [35.5K]

Answer:

72 degrees

Step-by-step explanation:

Slope

y=-(7/8)x+105

plug in 72 for the y

72=-(7/8)x+105

-177=-(7/8)x

72 = x

6 0
3 years ago
Equivalent expression
Nataly_w [17]
7(x+8) could work for that
8 0
2 years ago
Please help me I don’t know how to solve it and will mark brainiliest
Sindrei [870]

Answer: One plain roll is 4 dollars and one shiny roll is 6 dollars.

Step-by-step explanation:

lets start by saying

rolls of plain wrapping paper = x

rolls of shiny wrapping paper = y

Kathryn sold 4 plain rolls and 3 shiny rolls for 34 dollars.

4x+3y=34

Eugene sold 4 plain rolls and 2 shiny rolls for 28 dollars

4x+2y=28

Both equations will look like this.

4x+3y=34

-1(4x+2y)=(28)-1

we can multiply the second equation by -1 to get y alone. (doesn't matter which equation). Once you do that, the positive 4x and the negative 4x cancel out, 3y-2y=1y and 34-28=6. you are left with

1y=6 so one shiny roll is 6 dollars.

now use that price to find the cost of the plain roll.

lets use Kathryn's equation

4x + 3(6)=34

4x + 18= 34

      -18  -18

4x=16. Divide by 4 to find cost of one plain roll.

16÷4=4. One plain roll costs 4 dollars.

Lets check. Using Kathryn's equation,

4(4) + 3(6)=34

16+18=34

34=34. We are right.

3 0
3 years ago
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