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Troyanec [42]
2 years ago
5

1 point

Mathematics
1 answer:
Talja [164]2 years ago
8 0
Both A and B im pretty sure. they all have the same no matter
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What is the solution to the system of equations below?
Vanyuwa [196]

Answer:

A. (–8, 2)

Step-by-step explanation:

(1)       y =  ½x + 6  

(2)       y = -¾x –  4     Set (1) = (2)  

½x +   6 = -¾x –  4     Multiply each side by 4

2x  + 24 = -3x – 16     Add 16 to each side

2x  + 40 = -3x              Subtract 2x from each side  

        40 = -5x              Divide each side by -5

(3)       x = -8                 Substitute (2) into (1)

          y = ½(-8)  +6

             = -4 + 6

             =  2

The solution to the system of equations is (-8 ,2).

You can see the graphs of the two functions in the figure below. The two lines intersect at (-8, 2).

Check:

2 = ½(-8) + 6     2 = -¾(-8) - 4

2 = -4 +6           2 = 6 - 4

2 = 2                 2 = 2

8 0
3 years ago
A small theater had 9 rows of 25 chairs each. An extra 7 chairs have just been brought in. How many chairs are in the
Alchen [17]

Answer:

232

Step-by-step explanation:

9 x 25 = 225   225 + 7 = 232

another way to find it

9 x 20 = 180   9 x 5 = 45   180 + 45 = 225 + 7 = 232

8 0
3 years ago
2) There were 228 roses growing in the back garden. If 50% of the
Nookie1986 [14]
The answer is 114 just divide 228 by 2
6 0
3 years ago
Read 2 more answers
Which expression shows (45 + 15) in the form a(b+c) where a is the greatest common factor
4vir4ik [10]

Answer:

answer is a. 15(3+1)

Step-by-step explanation:

um this makes sense lmk if I'm wrong

4 0
2 years ago
Katie keeps Staples in a box that is
amm1812

Answer:

..........

Step-by-step explanation:

3 0
2 years ago
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