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zhenek [66]
4 years ago
15

At a speed of 22 revolutions per minute, how long will it take a wheel of radius 10,

Mathematics
1 answer:
Bogdan [553]4 years ago
5 0
Well, if the radius is 10, then the circumference is \frac{2*10*22}7=\frac{440}7
What's the unit? Either way, 22 rev. per minute means each minute you go by 22*\frac{440}7=\frac{9680}7 units per second. Now you got the linear speed, just find out the time by dividing the distance by the speed!
So, what's the unit for the radius?
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3 years ago
The bill for dinner was $34. You left $50 to pay for the meal and tip the server. What percent of the meal did you leave as a ti
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16

Step-by-step explanation:

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3 years ago
Diego has $11 and begins saving $5 each week toward buying a new phone. At the same time that Diego begins saving, Lin has $60 a
Nata [24]

Answer:

Let x represents the week and y represents the amount of money.

As per the given statement:

Diego has $11 and begins $5 each week toward buying a new phone.

⇒               ......[1]

It is also given that Lin $60 and begins spending $2 per week.

⇒               ....[2]

when they have the same amount.

equate [1] and [2] we get;

Add both sides 2x we get;

Subtract 11 from both sides we get;

Divide both sides by 7 we get;

x = 7

Substitute the value of x = 7 in [1] we have;

Therefore, at x= 7 week they have the same amount of money and they  have the amount at that time, $ 46

Step-by-step explanation:

6 0
3 years ago
Help me plsss ASAP<br> Quickly
Lera25 [3.4K]

Answer:

7

Third answer is correct.

Step-by-step explanation:

{7}^{1}   = 7

hope this helps you.

7 0
3 years ago
What is 60 out of 70 as a percentage?
bearhunter [10]
60 divided by 70 and multiplied by 100 to get your answer
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