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irga5000 [103]
3 years ago
7

Find a pair of numbers that is a member of both x=28-2y and -2x+4y=24

Mathematics
1 answer:
zhannawk [14.2K]3 years ago
7 0

Answer:

x=8 y=10

Step-by-step explanation:

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A bunch of friends went to the snack shake for lunch. The first family ordered 4 hamburger and 4 orders of fries for 9$. The sec
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Answer:

$1.50 for hamburgers, and $0.75 for fries.


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8 0
3 years ago
How can you tell that −10 and −20 are solutions to this inequality, but 10 is not? 3n − 40 < −5n + 8
pochemuha

Step-by-step explanation:

-10 or -20 satisfies the equation.

But when you substitute 10 in:

30-40<-50+8

-10<-42(wrong)

it's wrong

6 0
3 years ago
Identifying a constant of variation question<br><br> R= ?
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Pressure and Volume are inversely related as:

P= \frac{R}{V}

We can also write it as:

PV=R

R is the constant of proportionality. Using the first row of given table, we can write:

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Thus, the value of R, the universal gas constant is 8.31
4 0
3 years ago
Multiply.<br> Your answer should be a monomial in standard form.<br> (-9n^3)(n^3)
ratelena [41]

Answer:

-9n^6

Step-by-step explanation:

(−9n^3)(n^3)

=(−9) * n^3 * n^3

=−9 * n^6

=−9n^6

5 0
3 years ago
How do i find the value of x and y in problem 11?! i need help!!
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