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gregori [183]
3 years ago
13

PLEASE HELP I GIVE A DECENT AMOUNT OF POINTS !!The circumference of the outside of a ring is 66 mm, and it has an outer diameter

of 21 mm. If the circumference of the inside of the ring is 50 mm, what is the inner diameter of the ring?
Plz show how you got your answer. Fake answers will be reported and shown to administators
Mathematics
1 answer:
Alexxx [7]3 years ago
8 0

Answer

I gotchu. The answer I got is 15.9235 or 16

Step-by-step explanation:

So the formula for circumference is Pi times diameter. (If I remember right) Now we can flip this equation to become Circumference divided by pi. This will give us our answer. I dunno if you have to round so here are my two answers.

16 (rounded) or  15.9235 :)

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If I have this sequence 2, 4, 6, ... I can describe the rule as
Andrews [41]

Answer:

I believe your rule would be (The rule is add 3)

Step-by-step explanation:

If you have -9 and you get to -6 that means you added an interval of 3

-9,-6,-3,0,3 is how it would continue

(The rule is add 3)

3 0
3 years ago
ILL MARK AS BRAINLIST IF U GET IT RIGHT it’s khan
Sergeeva-Olga [200]

Answer:

5

Step-by-step explanation:

given that x and y are proportional, they can be expressed as y = rx, where r is the proportionality constant. Thus, we can solve for r by doing y/x in any given point.

\frac{8}{1.6} = \frac{15}{3}  = \frac{22}{4.4} = 5

8 0
3 years ago
In a random sample of 205 people, 149 said that they watched educational television. Find the 95% confidence interval of the tru
tensa zangetsu [6.8K]

Answer: Given a sample of 200, we are 90% confident that the true proportion of people who watched educational TV is between 72.1% and 81.9%.

Step-by-step explanation:

\frac{154}{200} =0.77

1-0.77=0.23

\sqrt{\frac{(0.77)(0.23)}{200} }=0.049

0.77±0.049< 0.819, 0.721

6 0
3 years ago
You have 10 gallons of lemonade. How many cups will be left over if you sell 80% of the lemonade
ioda

Answer:

2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
17 student on math team want to raise $483.62. They have already raised $218.25. If each student raises the same amount how much
ololo11 [35]

Answer:

$15.71

Step-by-step explanation:

They have already raised $218.25.

$483.62 - $218.25 = $265.37 left to raise

There are 17 students, so the remaining amount can be divided between them.

$265.37 ÷ 17 students = $15.71 that each student needs to raise

You can check this by multiplying $15.71 by 17.

7 0
3 years ago
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