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kompoz [17]
3 years ago
6

Which statement represents the expression 2q+3 ?

Mathematics
1 answer:
liraira [26]3 years ago
6 0

Answer:

Twice a number added to 3

Step-by-step explanation:

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Solve the systems of equations 6x+3y=9 2x+3y=1
patriot [66]
Solve by elimination.
The goal is to cancel out one of the variables in order to easily solve for the other variable.

Do this by changing the equations so that the coefficients of either x or y add up to 0.

Notice the coefficients of y are 3 and 3, if we make one of them negative then they add up to 0. 3+ (-3) = 0

Multiply 2nd equation by -1.

6x +3y = 9
-2x -3y = -1
__________
4x +0y = 8

Solve for x
4x = 8
x = 8/4 = 2

Plug x=2 back into one of original equations to find y.
---> 2(2) + 3y = 1
---> 4 + 3y = 1
---> 3y = -3
---> y = -1

Therefore solution is (2,-1)
7 0
3 years ago
What is the value of x
amm1812

Answer:

x=123

Step-by-step explanation:

x is across from the angle that measures 123 degrees. Therefore, they are vertical angles, and are congruent.

x=123

Additionally, 57 and x are on a straight line. This means they are supplementary and add to 180 degrees

57*x=180

Subtract 57 from both sides to get x by itself.

x=123

6 0
3 years ago
3 (5x - 6) + 2 (x + 8)
seraphim [82]

Answer:

x = 34/13

Step-by-step explanation:

3(5x - 6) + 2(x + 8)

15x - 18 = 2x + 16

15x = 2x + 34

13x = 34

x = 34/13

Best of Luck!

3 0
3 years ago
Read 2 more answers
Will someone plz help with these??<br> 18 and 19
Pavel [41]

Answer:

19 )

do cross multiply

and answer will come

Step-by-step explanation:

w+ý=z/y

8 0
3 years ago
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7. What is the area of the following circle. Use 3.14 for pi<br> Radius is 11cm
Luda [366]

Area of a circle = PI x r^2

Area = 3.14 x 11^2

Area = 3.14 x 121

Area = 379.94 square cm.

3 0
3 years ago
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