Answer:
Step-by-step explanation:
I would take a wild guess and just divide 4÷300. It gives you 75. 75+75+75+75=300 or 75×4=300. P=l+w+l+w
I'm really not sure how to solve this but I'll give it a shot.
30x10=300
10+10+30+30=80
there could honestly be several answers to this question.
Hi there!
In order to use the elimination method, you have to create one variable that has the same coefficient. This is to be able to eliminate one variable and have a one variable equation (which you can then solve).
In your case, we'll have the "x" have the same coefficient by multiplying the top equation by 4 and the bottom equation by 2 :
4( -2x + 3y = -4) → -8x + 12y = -16
2( 4x - 2y = 16) → 8x - 4y = 32
Now that both of your equation have a variable with the same coefficient, you need to choose rather you need to add or subtract the equations in order to get rid of the variable (in this case we want to get rid of the "x").
In your case, you want to add both equation together which will give you :
8y = 16
Now that you only have one variable, all you need to do now is solve the equation for "y" :
8y = 16
Divide each side of the equation by 8
y = 2 → Your answer
There you go! I really hope this helped, if there's anything just let me know! :)
((2,7),(15,13),(21,-4),(24,18))
A) (-4, 2, 7, 13, 15, 18, 21, 24)
B) ((7,2),(13,15),(-4,21),(18,24)
C) (2,15,21,24)
D) (-4,7,13,18)
2) The table shows the outputs y for different inputs x:
Input(x): 3,7,11,15
Output(y): 4,7,8,10
Part A) Do the data in this table represent a function? Justify your answer.
Part B) Compare the data in the table with the relation f(x)=5x-21. Which relation has a greater value when x=11?
Part C) Using the relation in Part B, what is the value of x if f(x)=99?
r = 5
Need help!?
Answer:
The expression = 6
Step-by-step explanation:
The expression is 30/r
30/r
Substitute r=5
30/5
6