3 years ago

I don't understand this?

Mathematics

1 answer:

Sophie [7]3 years ago

3 0

Answer:

THE ANSWER IS B. If someone owes something the number is negative, and if someone has money the number is positive, MARK ME BRAINLIEST!!!!!!

Step-by-step explanation:

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stealth61 [152]

The right answer is b

Step-by-step explanation:

You do you do the calculations you get that answer

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3 years ago

Which of the following ordered pairs represents the solution to the system given below? 2x + y = 20 4x − 2y = 40 A) (10,0) B) (0

shtirl [24]

$2x+y=20 \ \ \ |\times 2 \\
4x-2y=40 \\ \\
4x+2y=40 \\
\underline{4x-2y=40} \\
4x+4x=40+40 \\
8x=80 \ \ \ |\div 8 \\
x=10 \\ \\
2x+y=20 \\
2 \times 10+y=20 \\
20+y=20 \ \ \ |-20 \\
y=0 \\ \\
\boxed{(x,y)=(10,0)} \Leftarrow \hbox{answer A}$

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3 years ago

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If a bus traveled 400 miles in 8 hours, what was the average speed of the bus in miles per hour

MaRussiya [10]

Answer:

50 Miles per hour

Step-by-step explanation:

To find the average speed divide the distance by the time it took to cover that distance

400/8=50

So the bus traveled 50 miles per hour on average.

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What times what equals 80.73

steposvetlana [31]

80.98498747 is your answer

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mylen [45]

2.59x = 2.99+1.29
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3 years ago

I don't understand this?​

I don't understand this?