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Ket [755]
3 years ago
13

Combine the like terms to create an equivalent expression 2r+1+(-4r)+7

Mathematics
1 answer:
tekilochka [14]3 years ago
8 0

Answer:

2r+1+(-4r)+7

2r+8-4r

-2r+8<--- answer

Step-by-step explanation:


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WdkNEIOEWHDEIWDHWWD/
KiRa [710]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Solve with a system of equations: Two angles are supplementary if the sum of their measures are 180 degrees. If one is 90 degree
julsineya [31]

Answer:

  The measures of the angles are 150° and 30°.

Step-by-step explanation:

Let x and y represent the measures of the angles, with x representing the larger angle.

  x + y = 180 . . . . . . the two angles are supplementary

  x = 90 + 2y . . . . . one is 90° more than twice the other

___

Substituting the expression given by the second equation into the first, we have ...

  (90 +2y) +y = 180

  3y = 90 . . . . . . . . . . collect terms, subtract 90

  y = 30 . . . . . . . . . . . divide by the coefficient of y

  x = 180 -y = 150

The measures of the angles are 150° and 30°.

6 0
4 years ago
Pls help with this question
Talja [164]

Answer:

point A is x=4 and y=12

point B is x=16 and y=32

6 0
2 years ago
What is the value of x?
yuradex [85]

Answer:

the value of x is the answer.

Step-by-step explanation:

ok so say that there is a question that you get and it says 9 (x-2) ok so then you would take the x and replace it with the 9 so then you do (9-2=7 so then you would have x=7

6 0
3 years ago
Dan is a software salesman. His base salary is $1700, and he makes an additional $120 for every copy of History is Fun he sells.
sashaice [31]
We know that P is 1700, plus 120 for every copy of the book he sells.  As a result, P=120N+1700.  If N=29, we have P=120*29+1700, or P=3480+1700, so P=5180.
3 0
3 years ago
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