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CaHeK987 [17]
3 years ago
10

Simplify: -2 (x - 5) + 6x

Mathematics
2 answers:
Monica [59]3 years ago
7 0

Answer:

The answer is 4x+10

Step-by-step explanation:

-2(x-5)+6x= -2x+10+6x

                =4x+10

Ulleksa [173]3 years ago
4 0

Answer:

4x +10

Step-by-step explanation:

-2(x-5) +6x

-2x +10 +6x

4x +10

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Plss help i beg you!​
frosja888 [35]

Answer:

  • 51

Step-by-step explanation:

<u>Given expression:</u>

  • 3(x + y) +2x² + (1 + y)²

<u>Find its value when x = 4 and y = 1, substitute:</u>

  • 3(4 + 1) + 2*4² + (1 + 1)² =
  • 3*5 + 2*16 + 2² =
  • 15 + 32 + 4 =
  • 51
7 0
2 years ago
Is the number of miles driven, of renting a car for a day is $37 plus $0.75 per mile?
Art [367]
From what i'm understanding you want to know the equation for 37+.75x which is correct
3 0
3 years ago
The value of 23 + 33
ikadub [295]

Answer:

56 hope it helps....

hhcxxghjo9

4 0
3 years ago
Read 2 more answers
When Rafael emptied his pockets, e found he had a total of $3.50 in quarters and nickels. If he had 8 more quarters that nickels
jasenka [17]
You can use systems of equations for this one.

We are going to use 'q' as the number of quarters Rafael had,
and 'n' as the number of nickels Rafael had.


You can write the first equation like this:
3.50=0.05n+0.25q
This says that however many 5 cent nickels he had, and however many
25 cent quarters he had, all added up to value $3.50.
Our second equation is this:
q=n+8
This says that Rafael had 8 more nickels that he had quarters.

We can now use substitution to solve our system.

We can rewrite our first equation from:
3.50=0.05n+0.25q
to:
3.50=0.05n+0.25(n+8)

From here, simply solve using PEMDAS.

3.50=0.05n+0.25(n+8)     --Distribute 0.25 to the n and the 8
3.50=0.05n+0.25n+2     --Subtract 2 from both sides
1.50=0.05n+0.25n     --Combine like terms
1.50=0.30n     --Divide both sides by 0.30
5=n     --This is how many NICKELS Rafael has.

We now know how many nickels he has, but the question is asking us
how many quarters he has.

Simply substitute our now-known value of n into either of our previous
equations (3.50=0.05n+0.25q or q=n+8) and solve.

We now know that Rafael had 13 quarters.

To check, just substitute our known values for our variables and solve.
If both sides of our equations are equal, then you know that you have
yourself a correct answer.

Happy math-ing :)
5 0
3 years ago
D) Would the results change if we used pop sticks instead of blocks to measure
torisob [31]

Answer:

yes it would change since pop sticks are lighter than blocks are.

5 0
2 years ago
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