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r-ruslan [8.4K]
3 years ago
15

What’s the value of x??

Mathematics
1 answer:
KengaRu [80]3 years ago
7 0

Answer:

7

Step-by-step explanation:

98

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Associative property of (21)(7)(3x) ? <br> PLEASE HELPPPP <br> 40 PTS!!!!
sdas [7]
Ehh, now it's letting me answer.

So the associative property is basically as long as it's addition or multiplication,  you can move around the groupings and it will still be the same.

For example, you can say:(21 * 7) (3x)  instead of (21)(7)(3x)

And it would be equal to the old version.

(To answer your other question, the commutative property is you can move around all the parts of the equation as long as it's addition or multiplication.)

So basically, it would be the first one you sent me.
3 0
3 years ago
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Please help me finish these for summer school :)
ValentinkaMS [17]
13.45 will be the answer

since we are finding the hypotenuse, the formula is a^2 + b^2 = c^2

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2 years ago
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A superhero can fly from New York to Los Angeles in 30 minutes. The distance from New York to Los Angeles is approximately 2,450
kow [346]
<h3>Answer:  4900 mph</h3>

Work Shown:

30 min = 30/60 = 0.5 hours

distance = rate*time

rate = distance/time

rate = (2450 miles)/(0.5 hours)

rate = (2450/0.5) mph

rate = 4900 mph

For the sake of comparison, a typical commercial passenger jet can reach max speeds of about 600 mph.

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The hyperloop would be able to travel 1,050 miles in 1 1/2 hours. how long would it take the acela train to travel that far?
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3 years ago
What is the inequality to x+3&gt;8
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Answer:

x>5

Step-by-step explanation:

Subtract 3 from both sides.

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