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2 years ago

5.) Solve 2x–71 = 12. Be sure to show all of your work.

Mathematics

2 answers:

Scilla [17]2 years ago

3 0

Answer:

x = 41.5

Step-by-step explanation:

2x = 83

x = 83/2

x = 41.5

rosijanka [135]2 years ago

3 0

Answer:

Step-by-step explanation:

To solve this problem, first, you have to isolate x on one side of the equation.

2x-71+71=12+71 (First, add 71 from both sides.)

12+71 (Solve.)

12+71=83

2x=83

2x/2=83/2 (Then, divide by 2 from both sides.)

83/2 (Solve.)

83/2=41.5

x=83/2=41.5

So, the correct answer is x=83/2=41.5.

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8_murik_8 [283]

Answer:

Step-by-step explanation:

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6 0

3 years ago

Read 2 more answers

Given α and β are Supplementary. Show the necessary steps.

user100 [1]

Answer:

$\alpha = 108\degree, \: \beta = 72\degree$

Step-by-step explanation:

α and β are Supplementary (given)

$\therefore \alpha + \beta = 180\degree.... (1)$

It is given that:

$\alpha= \frac{3}{2} \beta$

Plugging the value of α in equation (1), we find:

$\frac{3}{2} \beta + \beta = 180\degree$

$\therefore \frac{3+2}{2} \beta = 180\degree$

$\therefore \frac{5}{2} \beta = 180\degree$

$\therefore \beta = 180\degree\times \frac{2}{5}$

$\therefore \beta = 72\degree$

$\implies \alpha= \frac{3}{2} \times 72\degree= 108\degree$

So,

$\alpha = 108\degree, \: \beta = 72\degree$

7 0

2 years ago

Can someone tell me the slope ?

borishaifa [10]

Answer:

slope = 4

Step-by-step explanation:

We can find the slope of a line when knowing 2 points by using the slope formula, $\frac{y_2 - y_1}{x_2 - x_1}$ . $x_1$ and $y_1$ represent the x and y values of the first point, respectively. $x_2$ and $y_2$ represent the x and y values of the second point, respectively.

The two points we have are (2,8) and (0,0). So, in this case, $x_1$ = 2, $y_1$ = 8, $x_2$ = 0, and $y_2$ = 0. Let's substitute those values into the formula and solve to get the slope:

$m =$ $\frac{0-8}{0-2}$