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Serggg [28]
3 years ago
8

A proportional relationship is represented by the equation 2x=18y. If y= kx, where k is the constant of proportionality, then wh

at is the value of k?
Mathematics
1 answer:
Alik [6]3 years ago
3 0
2x/2=18y/2
x=9y
x=9kx
k=1/9
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Explain why (-8) is not a solution to the equation x³=512
fiasKO [112]

-8 is not a solution to 512 because when you multiply 2 negative numbers together it becomes positive, but you're multiplying it three times. so - 8 * -8 = 64 but if you multiply -8 again the solution will be a -512 not a positive 512

6 0
3 years ago
A truck enters a highway at 60 mph. A car enters the highway at the same place 11 minutes later and drives 74 mph in the same di
Crank

Answer:

Since speed is given in terms of "hours" we must convert 9 minutes to hours:

9 minutes = 9/60 hours = 3/20 hours

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Let x = time (hours) it takes car to pass the truck

then

60(x + 3/20) = 69x

multiplying both sides by 20:

60(20x + 3) = 1380x

1200x + 180 = 1380x

180 = 180x

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Step-by-step explanation:

5 0
3 years ago
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Select all points from the list below that lie
Kaylis [27]

Answer:

so you need to take them and put them on the 4 quadrants or need to be put on a number line

Step-by-step explanation:

is there any other thing attached to the question?

6 0
3 years ago
Abby Score is 586 points .cruz score is 754 points.abbys estimates she needs about 200 more points to reach .is Abby’s correct
zhuklara [117]
She's wrong she just needs about 170 more points to reach Cruz
3 0
3 years ago
2x -4(x+2) = -2x - 8
azamat

Answer:

All real numbers

Step-by-step explanation:

First, distribute the -4 on the left side

2x-4(x+2)=-2x-8

2x-4*x+-4*2=-2x-8

2x-4x-8= -2x-8

Combine like terms on the left side

-2x -8 = -2x -8

Since the two sides are equal, all real numbers are solutions

Hope this helps! :)

6 0
4 years ago
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