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
Lady_Fox [76]
2 years ago
14

The perimeter of the big wheel of a bicycle is 9 cm longer than the perimeter of the front wheel. On the road of 120 cm, the big

wheel does 12 less rotations than the front one. Find the perimeters of each wheel.
PLEASE HELP I'VE BEEN STUCK ON THIS FOR WEEKS!!!
Mathematics
1 answer:
beks73 [17]2 years ago
3 0

Answer:

search-icon-header

Search for questions & chapters

search-icon-image

Question

Bookmark

A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the diameter of the wheel is 60cm, calculate the speed per hour with which the boy is cycling.

Easy

Solution

verified

Verified by Toppr

Radius of the wheel =r=

2

60

=30 cm

Circumference of the wheel =2πr=2×

7

22

×30=

7

1320

cm

Distance covered in 1 revolution =

7

1320

cm

Distance covered in 140 revolutions =

7

1320

×140=26400 cm=264 m=

1000

264

km

Distance covered in one minute = Distance covered in 140 revolutions =

1000

264

km

Distance covered in 1 hour =

1000

264

×60=15.84 km

Hence, the speed with which the boy is cycling is 15.84km/hr.

You might be interested in
Solve this problem: –282 – (+1,017) = ?
klio [65]
The answer is -1,299
4 0
3 years ago
Read 2 more answers
A house and a lot are appraised at 212,400. If the value of the house is five times the value of the lot, how muchis the house w
JulsSmile [24]
It will be 1062000 because....
you multiply 202400 by 5
the key word in the reading is times
5 0
3 years ago
The cost of 4 pounds of grapes is $24.36.wgat is the constant of proportionality
IRINA_888 [86]
The answer
A:6.09

Th explanation
Divide 24.36 by 4 and that’s what you get
6 0
3 years ago
Point C is located at (1, 2), and point D is located at (-4,-2). Find the point that is the distance from point C
marishachu [46]

Answer:

The answer would be c

Step-by-step explanation:

i choosed c because u have da negative sign in front of 4 and 2 and positive numbers with 1 and 2

6 0
3 years ago
Read 2 more answers
Can someone explain this, please
xenn [34]

Answer:

its the 3 one

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • The perimeter of the scalene triangle is 54.6 cm.
    9·1 answer
  • Consider this equation:
    15·2 answers
  • Double the sum of a double the number and quotient of five and two
    6·1 answer
  • If the domain of the coordinate transformation f(x,y) = (y+1,-x-4) is (1,4), (-3,2), (-1,-1), what is the range?
    12·1 answer
  • 1/5 times 26 estimate each project
    5·1 answer
  • The area of a rectangular playground is 16 square yards. The length of the playground is 4 times longer than
    9·1 answer
  • What is the measure of angle 4?
    7·1 answer
  • A typist can type 1800 words in 1 hour.Find the number of words that he can type per minute​
    10·2 answers
  • Select the correct answer.<br> Which equation is equivalent to the given equation
    8·1 answer
  • Please help with this question
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!