1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
anygoal [31]
3 years ago
14

The wheels on Annie's bicycle are $20$ inches in diameter. If each wheel makes $3$ full revolutions every second, then how many

feet does Annie travel in $1$ second? Give your answer as an integer, rounded to the nearest foot.
Mathematics
1 answer:
NISA [10]3 years ago
5 0
We have that
diameter=20 in---------------> r=d/2--------> 20/2---------> r=10 in
[length of a circumference]=2*pi*r-------> 2*pi*10-------> 20*pi in

we know that
 1 revolution----------------> 20*pi in
3 revolutions (one second)----------------> X
X=3*20*pi---------> X=60*pi in  ( this is in one second)

1 foot--------------> is equal to 12 in
X-----------------> 60*pi in
X=60*pi/12--------> 5*pi ft------------> 15.708 ft---------> 16 ft (in one second)

the answer is
16 ft/sec
You might be interested in
A.
Dovator [93]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
What is 16500 rounded to the nearest ten thousand?
frosja888 [35]
16500 Rounded to the nearest ten thousand is 20,000
4 0
3 years ago
For every 5 pages in a book Fred reads, Lonnie reads 4 pages. In 1 hour, they read a combined total of 36 pages. How many pages
nydimaria [60]

Answer:

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

Step-by-step explanation:

The table that can be formed by the rate at which they study the number of pages of a book is:

Fred     Lonnie       total

 5           4                9

 10          8               18

 15          12              27

 20         16              36

That means when they read a combined of 36 pages.

Then the number of pages read by Fred is 20 pages.

and the number of pages read by Lonnie is 16 pages.

(

Also it could be done as :

Let Fred reads 'x' pages.

so, the number of pages read by Lonnie is: (4/5)x

Hence,

x+(4/5)x=36

on solving this linear equation we have:

x=20

and (4/5)x=16

)

Hence the number of pages read by Lonnie is 16 pages when they read a combined of 36 pages.

3 0
3 years ago
T = 3U / E solve for U
Rashid [163]
<span>T = 3U / E solve for U

3U = T * E
U = (</span>T * E)/3
U = 1/3(TE)
7 0
3 years ago
PLEASE HELP MEEE !!!!​
WINSTONCH [101]

Answer:

Step-by-step explanation:

Lets find out first the Area of the rectangle building

A=50*100=5000 ft^2

we have 2 circles with the radius of 42 ft, r=21ft

Acircle=3.14*(21)^2=1384.74

Area of 2 circles=2*1384.74=2769.48

What is not covered by the rings is

5,000.00-2769.48=2230.52, rounded is 2231

Choice A

5 0
3 years ago
Read 2 more answers
Other questions:
  • 15 = p - 12<br><br> btw i got points a lot
    10·2 answers
  • I need to know the answer pretty quickly
    7·2 answers
  • Question 2 Unsaved Cat is 5 less than twice Dog's age. Cat is 11 years old. Find Dog's age.
    9·2 answers
  • HELP ASAP! 20 POINTS! 5 QUESTIONS!
    13·1 answer
  • Scott brought 3 bags of candy with 75 pieces in each one. He plans to divide all the candy evenly among three friends how many p
    13·1 answer
  • Coin toss resultsh = heads t = tailst h t h t h t t t t h t h t tfind the experimental probability of tossing heads.
    8·1 answer
  • A. Find the slope of the roof of a home that rises 8 feet for every horizontal change of 24 feet.
    8·1 answer
  • Answer the last one please answer fast
    10·1 answer
  • A person's metabolic rate is the rate at which the body consumes energy. Metabolic rate is important in studies of weight gain,
    8·1 answer
  • Jan took her brother out to dinner. The cost of Jan’s dinner was $18.50. The cost of her brother’s dinner was $19.00. If they wa
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!