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lawyer [7]
2 years ago
14

88.1-2.3f=72.46 how do you find f

Mathematics
2 answers:
motikmotik2 years ago
4 0

Answer:

F = 6.8

Step-by-step explanation:

- To find this take 88.1 - 72.46. You should get 15.64.

- Next, take 15.64/2.3. You should get 6.8

- Now, to check our work...

88.1 - (2.3x6.8) = 72.46

88.1 - 15.64 = 72.46

- Overall, you should have done...

88.1 - 72.46 = 15.64

15.64/2.3 = 6.8

F = 6.8

- Hope this helps! If you would like more help or a further explanation please let me know, as I am glad to help anytime.

V125BC [204]2 years ago
3 0

Answer: f = 6.8

Step-by-step explanation:

88.1 - 2.3f = 72.46

First, subtract 88.1 from both sides

-2.3f = -15.64

Divide each side by -2.3

f = 6.8

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Answer:

y = \frac{4}{3} x + 17  

Step-by-step explanation:

The table shows a set of x and y values, thus showing a set of points we can use to find the equation.

1) First, find the slope by using two points and substituting their x and y values into the slope formula, \frac{y_2-y_1}{x_2-x_1}. I chose (-3, 13) and (0,17), but any two points from the table will work. Use them for the formula like so:

\frac{(17)-(13)}{(0)-(-3)} \\= \frac{17-13}{0+3} \\= \frac{4}{3}

Thus, the slope is \frac{4}{3}.

2) Next, identify the y-intercept. The y-intercept is where the line hits the y-axis. All points on the y-axis have a x value of 0. Thus, (0,17) must be the y-intercept of the line.

3) Finally, write an equation in slope-intercept form, or y = mx + b format. Substitute the m and b for real values.

The m represents the slope of the equation, so substitute it for \frac{4}{3}. The b represents the y-value of the y-intercept, so substitute it for 17. This will give the following answer and equation:

y = \frac{4}{3} x + 17

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