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3 years ago

5

Lucius and Angelina's teacher gave them a system of linear equations to solve. They each took a few steps that led to the system

s shown in the table below.

1 answer:

joja [24]3 years ago

6 0

Answer:

both

Step-by-step explanation:

Luc and Ang both just didn't simply one of there equations, otherwise it is equal

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Is a vertical line perpendicular to the x-axis

borishaifa [10]

A vertical line is perpendicular to the x-axis because they would intersect to form a 90 degree angle.

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3 years ago

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robert is in charge of the community swimming pool. each spring he drains is in order to clean it. then he refills the pool, whi

Airida [17]

If the required rate is gallons per minute, then its obvious from the question, that the rate of filling the pool is 10 gallons per minute, and its obviously a constant number.
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4 years ago

Tim and Jim are working on a school project together. If he had to work by himself, it would take

Vladimir [108]

Answer: 6 hours

Step-by-step explanation:

Given, Tim and Jim are working on a school project together.

Tim takes 10 hours to complete the school project.

If Jim worked alone, it would take him 15 hours

Let t be the time they both take if they work together.

Then, $\dfrac{1}{t}=\dfrac{1}{\text{Time taken by Tim}}+\dfrac{1}{\text{Time taken by jim}}$

$\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{10}+\dfrac{1}{15}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{3+2}{30}=\dfrac{5}{30}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1}{6}\\\\\Rightarrow t=6$

So, it will take<u> 6 hours</u> to complete the school project together .

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3 years ago

PLEASE HELP ASAP! LOTS OF POINTS

Sladkaya [172]

C because 9 + 5 is not 15 and because 13 + 5 is not 20

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Twenty of the 25 students in Mrs. Thigpen’s class are we wearing sneakers. What is the fraction in simplest form?

fredd [130]

Answer:

4/5

Step-by-step explanation:

20/25 = 4/5

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3 years ago