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mr Goodwill [35]
3 years ago
6

If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?

2x+8y=12
3x-8y=11



A. y, in the second equation

B. x, in the second equation

C. x, in the first equation

D. y, in the first equation
Mathematics
1 answer:
zepelin [54]3 years ago
7 0
Honestly this problem you can use both x and y but x tends to be the easier one to use and i would use the first equation because it is easier to solve because all the numbers are even.<span />
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A coin is tossed and a number cube is rolled what is the probability that the coin shows heads and the number cube shows six
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Answer:

There is a 1/2 chance the coin will land on heads and there is a 1/6 chance that the number cube will land on 6. hope this helps

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Solve each equation. Show your work<br><br> 13a=-5<br> 12−b=12.5<br> -0.1=-10c
amid [387]
1) 13a=-5
Make a the subject of the formula by dividing both sides by 13(the coefficient of a)
13a/13=-5/13
Therefore a= -0.385

The second one). 12-b= 12.5
You take the 12 to the other side making b subject of the formula (-b in this case)
-b= 12.5-12
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(You cannot leave b with a negative sign so you will divide both sides by -1 to cancel out the negative sign)

-b/-1= 0.5/-1
Therefore b=-0.5

The third one). -0.1= -10c
You will divide both sides by the coefficient of c(number next to c) which is -10
-0.1/-10= -10c/-10

Hence, c= 0.01
5 0
3 years ago
Penny pays $14 a month for her book club membership. With the membership each book costs $5. write an algebraic expression for h
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14 + 5x, with x = no. of books
8 0
2 years ago
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20 po
Kobotan [32]

Answer:

Step-by-step explanation:

B

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The graph of g(x) ​​is the graph of f(x)=8x+20 stretched horizontally by a factor of ​4​.
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