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Natali5045456 [20]
3 years ago
5

3x-4 when x = 7 how do I do this equation I’m confused

Mathematics
2 answers:
natka813 [3]3 years ago
6 0
Plug the 7 in where it says x.
3x-4
3(7)-4
21-4
17
Andreas93 [3]3 years ago
5 0

Answer:

17.

Step-by-step explanation:

1. Plug in 7 for x.

2. 3(7)-4

3. 3 times 7 is 21.

4. 21 minus 4 is 17.

5. The Answer is 17.

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First of all, we need to know what a function is.

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8 0
1 year ago
Use the graph to find the slope. What is the runners speed?
Murrr4er [49]

The formula for the slope is m=\frac{y_2-y_1}{x_2-x_1}

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3 0
3 years ago
-3/v=-6 simply as much as possible
Aleksandr [31]
Hey!


In order to simplify this equation, we'll first have to multiply both sides of the equation by v. This will give us v on its own.

<em>Original Equation :</em>
\frac{-3}{v} = -6

<em>New Equation {Added Multiply Both Sides by V} :</em>
\frac{-3}{v} v=-6v

<em>Solution {New Equation Solved} :</em>
-3 = -6v

Now we'll switch sides to get v on the left side of the equation which is generally where we always want the variables to be located in these types of equations.

<em>Old Equation :</em>
-3 = -6v

<em>New Equation {Switched} :</em>
-6v=-3

Now we'll divide both sides by v to get v on its own.

<em>Old Equation :</em>
-6v = -3

<em>New Equation {Added Divide Both Sides by V} :</em>
\frac{-6v}{v} = \frac{-3}{v}

<em>Solution {New Equation Solved} :</em>
v =  \frac{1}{2}

<em>So, this means that in the equation \frac{-3}{v} =-6,</em>  v =  \frac{1}{2}.

Hope this helps!


- Lindsey Frazier ♥
3 0
3 years ago
What two factors multiply to -90 add up to 27
JulsSmile [24]

Answer:

30 and -3

Step-by-step explanation:

30 x -3=-90

30-3=27

7 0
3 years ago
Ashton is saving money to buy a new bike. He has saved $48 which is only 60% of what he needs to save. What is the total cost of
DiKsa [7]

Answer:

80

Step-by-step explanation:

48/60 = x/100

48 x 100= 4,800

4,800 divided by 60=80

x= $80.00

3 0
3 years ago
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