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o-na [289]
2 years ago
8

Pls help me asap... plssss..... ty​

Mathematics
1 answer:
olasank [31]2 years ago
5 0

Answer:

Well... "Alphabets" in math, are defined as variables...

And we use variables to show the things that we are multiplying, dividing, subtracting, or adding. Like: Beach balls=B "Tommy has to blow up 20 beach balls before he can go to the beach, his mom offers to help him. How many beach balls do each of them have to blow up?" One equation we could use is "B/2 or B divided by 2" :)

Step-by-step explanation:

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riadik2000 [5.3K]

Answer:

x=20; y=50 or (20, 50)

Step-by-step explanation:

Substitution means plugging in one variable's value that consists of the opposite variable. Because y=3x-10 is already specified, you can plug it into the second equation's y value. After doing that, it looks like this:

-4x+2y=20→-4x+2(3x-10)=20

Then you would distribute the 3 across the parentheses next to it, like this:

-4x+2(3x-10)=20→-4x+6x-20=20

Then, add like terms, like this:

-4x+6x-20=20→2x=40

Then divide both side by 2 to isolate x.

x=20

Now, you can plug 20 (x) into either equation, but the first one seems simpler so you would pick that. It would look like this:

y=3x-10→y=3(20)-10

Solving would look like this:

y=3(20)-10→y=60-10→y=50

So the answer is x=20; y=50 or (20, 50).

6 0
2 years ago
Read 2 more answers
A bag contains the letters of the word “PROBABILITY”.
Sveta_85 [38]

The word probability has 11 letters, there are 2 b's, so, the probability you are asking for is P= 2/11.

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3 years ago
What is the equation of the line that has a slope of 4 and a y-intercept of -7?
pentagon [3]
Y=4x-7 think this is the answer
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lozanna [386]
9w - 7 = 5

9w= 5+7

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AD is the perpendicular bisector of BC. BD = 5x - 10 and DC = 3x + 10. Determine the value of x.
Nookie1986 [14]

Answer: x= 10

Step-by-step explanation:

6 0
3 years ago
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