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2 years ago

-3+4p=-31 idk what it is

Mathematics

2 answers:

OLga [1]2 years ago

4 0

4p = -28
divide each side by 4
p = -7

BARSIC [14]2 years ago

4 0

Answer:

$\boxed {p = -7}$

Step-by-step explanation:

Solve for the value of $p$ :

$-3 + 4p = -31$

-Add both sides by $3$ :

$-3 + 3 + 4p = -31 + 3$

$4p = -28$

-Divide both sides by $4$ :

$\frac{4p}{4} = \frac{-28}{4}$

$\boxed {p = -7}$

Therefore, the value of $p$ is $-7$ .

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Then, you find the volume of the dome.

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2 years ago

Please help I am so confused

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The total cost when 881 minutes is used is $477.50.

<h3>What are the equation that model the question?</h3>

a + 480b = 277 equation 1

a + 990b = 532 equation 2

Where:

a = flat fee
b = variable fee

<h3>What is the flat fee and the variable fee?</h3>

Subtract equation 1 from equation 2

510b = 255

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In order to determine the flat fee, substitute for b in equation 1

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Total cost = flat fee + (variable cost x number of minutes spoken)

$37 + (881 x 0.5) = $477.50

To learn more about simultaneous equations, please check: brainly.com/question/25875552

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1 year ago