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3 years ago

What is the value of r in the equation -1.5(4-r)=-12? –6 –4 4 6

Mathematics

2 answers:

Greeley [361]3 years ago

8 0

Answer:

B -4

Step-by-step explanation:

-1.5(4 - r) = -12

Distribute -1.5.

-6 + 1.5r = -12

Add 6 to both sides.

1.5r = -6

Divide both sides by 1.5.

r = -4

Your answer is -4.

nexus9112 [7]3 years ago

8 0

Answer:

r = -4

Step-by-step explanation:

-1.5(4-r)=-12

Divide each side by -1.5

-1.5 / -1.5 *(4-r)=-12 / -1.5

(4-r) =8

Subtract 4 from each side

4-r-4 = 8-4

-r = 4

Divide each side by -1

-r/-1 = 4/-1

r = -4

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Answer:

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Step-by-step explanation:

A set of electric toothbrush prices are normally distributed with a mean of 87 dollars and a standard deviation of 8 dollars.

$Mean = \mu = 87$

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Tags: complex number additive inverse opposite algebra

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