Answer:
10
Step-by-step explanation:
Hope it helps! :D
Answer: -3.5x
Step-by-step explanation:
Distribute 7 to 1 and 2 then
Answer:
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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
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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.
9514 1404 393
Answer:
$6.56
Step-by-step explanation:
The value is found by multiplying:
32% of $20.51 = 0.32 × $20.51 = $6.5632 ≈ $6.56
Answer:
94.2ft
Step-by-step explanation:
- The formula for finding the circumstance is the diameter times pi.
- We know the radius. To find the diameter, we double the radius, which would be 30. (2x15=30)
- Next, we multiply 30 by pi. (30x3.14). The answer is 94.2.
- Thus, the answer is 94.2ft.
