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aleksklad [387]
3 years ago
12

Can someone PLEASE HELP I am on a unit test

Mathematics
1 answer:
Darina [25.2K]3 years ago
6 0
C and the vertex is V (6,18)
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Answer:

Please see attachments for step by step guide and answers.

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Is -0.142857142857142857 rational or irrational
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Step-by-step explanation:

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Melanie's food bill at a restaurant is $28.45. The sales tax rate is 6%. If she added 20% of the amount for a tip, what is the t
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3 years ago
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7 0
3 years ago
One number is 6 more than twice the other number. If the sum of the two numbers is ​21, find the two numbers
hichkok12 [17]

Answer:

One number, let's call it x, is 6 more than twice the other number, let's say this number is y.

x= 2y+6

x+y=21

We're left with a system of equations.

If we substitute the first equation in the second we find the value of y.

(2y+6)+y=21

3y+6=21

3y=15

<u><em>y=5</em></u>

Now that we have found the value of y, we can take that value and substitute it in the second equation (since it's easier) to find the value of x.

x+ (5)=21

<u><em>x=16</em></u>

<u><em>Now to check if our answers are correct, we plug in both values into any equation and see if they equate.</em></u>

x+y=21

(16)+(5)=21

21=21

Our solution is correct!

4 0
2 years ago
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