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3 years ago

Solve for r −11r+8=10r−13

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

8 0

Answer:

r=1

Step-by-step explanation:

$-11r+8-8=10r-13-8\\\\-11r=10r-21\\-11r-10r=10r-21-10r\\-21r=-21\\\frac{-21r}{-21}=\frac{-21}{-21}\\r=1$

Alex17521 [72]3 years ago

3 0

r=21/20

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0.76 is the median.

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3 years ago

5. Which of the following is the equation of a line. that passes through the points (0.8) and (6.4)7 Use of

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See in the explanation

<h2>Explanation:</h2>

In this exercise, <em>we have the following points:</em>

$(0.8) \\ \\ (6.4)$

And <em>the following linear equations:</em>

$(1) \ y=-x+8 \\ \\ (2) \ y=\frac{3}{2}x+6 \\ \\ (3) \ y=-\frac{4}{5}x+4 \\ \\ (4) \ y=\frac{1}{2}x+8$

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This is the second graph below. The graph passes neither through point (0, 8) nor (6, 4)

This is the third graph below. The graph passes neither through point (0, 8) nor (6, 4)

This is the fourth graph below. The graph only passes through the point (0, 8)

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<h2>Learn more:</h2>

About lines: brainly.com/question/12169569

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3 years ago

The angles shown are supplementary. What is the value of x?

Nookie1986 [14]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

8(t+2)-3(t-4)=6(t-7)+8 i dont understand this is 5.111111 correct?

Kay [80]

<span>8(t + 2) - 3(t - 4) = 6(t - 7) + 8

To solve this equation, first apply the Distributive Property. The Distributive Property is defined as a(b + c) = ab + ac. We'll need to apply it three times for this equation.

8(t + 2) => 8t + 16
-3(t - 4) => -3t + 12
6(t - 7) => 6t - 42

This gives us

</span>8(t + 2) - 3(t - 4) = 6(t - 7) + 8
8t + 16 - 3t + 12 = 6t - 42 + 8

Next, combine like terms (constants with constants and variable terms with variable terms).

8t + 16 - 3t + 12 = 6t - 42 + 8
5t + 28 = 6t - 34

Now we need to get all constants on one side and all variable terms on the other side. Begin doing so by first subtracting 28 from both sides.

5t + 28 = 6t - 34
5t = 6t - 62

Subtract 6t from both sides.

5t = 6t - 62
-t = -62

Divide both sides by -1.

t = 62

Answer:
t = 62

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