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BARSIC [14]
2 years ago
5

Use substitution. What is the solution to the system of equations? y=1/2x+2 2y=x+4

Mathematics
1 answer:
morpeh [17]2 years ago
4 0

Answer: Infinitely many solutions.

Step-by-step explanation:

y=\frac{1}{2}x+2\\2y=x+4\\

Use \frac{1}{2} x+2 for y in 2y=x+4

2(\frac{1}{2}x+2)=x+4\\x+4=x+4\\x-x = 4-4\\0=0

Infinitely many solutions.

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Help me with this please
bekas [8.4K]

Answer:

f(-5) = 4(-5) + 1 = -20 + 1 = -19

f(-1) = 4(-1) + 1 = -4 + 1 = -3

f(2) = 4(2) + 1 = 8 + 1 = 9

f(3) = 4(3) + 1 = 12 + 1 = 13

f(5) = 4(5) + 1 = 20 + 1 = 21

7 0
2 years ago
A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as ed
zhuklara [117]

Answer:

For the cost from the two methods to be equal, 3,200 books have to be produced

Step-by-step explanation:

In this question, we are asked to calculate the number of books that will be produced for two methods of production having different fixed and variable costs to have the same production cost.

Since the number of books is something we do not know, let’s represent it with a variable called c.

For the first production method, the cost of production will be ; 58,881 + 8.50c

For the second production method, the cost of production will be; 18,081 + 21.25c

Now since they are said to be equal, we proceed to equate both;

58,881 + 8.5c = 18,081 + 21.25c

58,881-18,081 = 21.25c - 8.5c

40,800 = 12.75c

c = 40,800/12.75

c = 3,200 books

4 0
2 years ago
The age of trees in a forest is known to be approximately normal with an average age of 40 years and a standard deviation of 10
Keith_Richards [23]

Answer: D. -0.6

Step-by-step explanation:

Z score formula= x-mean/ SD

34-40/10= -3/5= -0.6

6 0
3 years ago
What is the measure of angle BAC? Round to the nearest
tigry1 [53]

Answer:

the answer is c. 44, i hope it works

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help on B!!!! i need explanation +math
jekas [21]

It shows that six years pasted between 2007 and 2013 and it increased by 20,000 so add that to the population at the time the answer is 158000

5 0
3 years ago
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