3 years ago

What underfined geometric term is described a two dimensional set point that has no beginnings or end

Mathematics

1 answer:

yan [13]3 years ago

6 0

It is called a Line. It is a straight path that extends forever

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Alex787 [66]

A. 25 = (.5 * 22) + (2 * x)

B. 25 = (.5 * 22) + (2 * x)
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3 years ago

It is 7:25 A.M. when Jackie starts eating breakfast, and it takes her 20 minutes to eat. What time will it be when Jackie finish

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Jackie will finish her breakfast at 7:25 plus 20 minutes= 7:45 AM

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KiRa [710]

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3 years ago

A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze, and the second brand is 70% pure anti

andre [41]

Answer:

First brand of antifreeze: 21 gallons

Second brand of antifreeze: 9 gallons

Step-by-step explanation:

Let's call A the amount of first brand of antifreeze. 20% pure antifreeze

Let's call B the amount of second brand of antifreeze. 70% pure antifreeze

The resulting mixture should have 35% pure antifreeze, and 30 gallons.

Then we know that the total amount of mixture will be:

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$0.2A + 0.7B = 10.5$

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.7 and add it to the second equation:

$-0.7A -0.7B = -0.7*30$

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$-0.5A = -10.5$

$A = \frac{-10.5}{-0.5}$

$A = 21\ gallons$

We substitute the value of A into one of the two equations and solve for B.

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3 years ago

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