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Ad libitum [116K]
3 years ago
13

2x^-7xy+3y^2÷2x^2-18y^2​

Mathematics
2 answers:
Murrr4er [49]3 years ago
8 0

Answer:

 -x • (81x3y4 + 343x2y2 - 7938x - 3969y2)

 ———————————————————————

                   441                  

zimovet [89]3 years ago
7 0

Answer:

196

<u>Step-by-step explanation                    </u>  you subtract,add,divide,then subtract   hope its right!!!!!!!

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Read 2 more answers
Marc is half as old as Tony and three times as old as Ben. If the sum of their ages is 40, how old is Marc?
Murljashka [212]

Answer:

Marc's age is 12

Step-by-step explanation:

Let

x ----> Marc's age

y ---> Tony's age

z ---> Ben's age

we know that

the sum of their ages is 40

so

x+y+z=40 -----> equation A

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so

x=\frac{y}{2}

y=2x ----> equation B

Marc is three times as old as Ben

so

x=3z

z=\frac{x}{3} ----> equation C

substitute equation B and equation C in equation A

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therefore

Marc's age is 12

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3 years ago
Write and solve a real-world word problem in which there are 3 pancakes for every person
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3 years ago
What is 6÷2(1+2)<br><br>someone help ​
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Hopes this helps:

Answer: 9

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2 years ago
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