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LenKa [72]
3 years ago
15

What is the direct variation between x and y when x=7 and y=3 1/2?

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
6 0

Answer:

{ \tt{y  \: \alpha \: x }} \\ { \tt{y = kx}} \\  \\ { \bf{3 \frac{1}{2}  = k \times 7 }} \\ { \bf{k =  \frac{1}{2} }} \\  \\ { \tt{y =  \frac{1}{2}x }} \\  \\ { \tt{y = 0.5x}}

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3241004551 [841]
I believe it is C but I’m not sure
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3 years ago
What are the terms in the expression 2x−4y+8 ?
vazorg [7]

Answer:

A. 2x, -4y, and 8

Step-by-step explanation:

If there is a minus sign in front of the 4 (-), add that to the expression. What you are just simply doing is separating the numbers up. For example:

12x - 8y + 4x

Now here, you have two of the same variables (x, y, etc). So, what you do is look at the last number that has the same variables, which is 4, and look at what the problem you will be solving, which is addition. So, very simply, you add then together!

12× + 4× = 16×

As you can see I kept the same variable. This is because, well, it is the same! Simply, just substitute in the 16× with the 8y. Now here is the tricky part, for some people. Do you see that there is a negative sign in front of the 8 (-)? Well! You have to substitute that in with the expression. No adding this or anything, just simply slide it next to the 16× because, we can not add nor subtract it with the 8y just because it has a different variable.

Your example answer would be: 16× - 8y

Hope this helps!

P.S. if you think this helped you at all, Brainliest me if ya want to. Have a great day!

5 0
3 years ago
Which statements about the graph of the function y=(1/3)
Elena-2011 [213]
Answer: The range of the function is all real numbers is true.

Explanation: the graph of y = 1/3 is just a horizontal line at y = 1/3. so it’s not increasing or decreasing (it’s staying the same). there is no x-intercept, and the y-intercept is (0, 1/3). the range is all the possible y values, and there are infinite possible y values, so it is all real numbers.

hope this helps!
8 0
3 years ago
Tate is saving his money to buy a go-cart. The go-cart he wants costs $240. His mom agreed to chip in $60. What % of the total c
enot [183]
The answer is 25%.

60/240=x/100
60*100=6000
6000/240=25

60/240=25/100
7 0
3 years ago
Can someone help me with this problem 3(x+1)=11 I need it step by step
Nataly [62]

Answer:

x = 2.66666667

Step-by-step explanation:

3(x + 1) = 11

We multiply both x and 1 by 3 and get

3x + 3 = 11

Now we subtract 3 from both sides

3x + 3 - 3 = 11 - 3

3x = 8

Now divide both sides by 3

3x/3 = 8/3

x = 2.66666667

(っ◔◡◔)っ ♥ Hope It Helps ♥

6 0
3 years ago
Read 2 more answers
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