you ride your bike X miles per hour up a mountain for 45 minutes on the way
We convert minutes into hour because speed is in miles per hour
To convert minutes into hour we divide by 60
45 minutes =
it takes 20 minutes to ride your bike down the mountain
20 minutes =
you ride your bike X miles per hour up a mountain
Distance = speed * time taken
distance covered while riding bike up a mountain is
D = x *0.75
on the way down the mountain you ride your bike for 4 miles per hour faster
So time taken is x + 4
distance covered while riding bike up a mountain is
D = (x+4) * 0.33
Distance covered by climbing up and down the mountain are same
so we make the distance equation equal
x *0.75= (x+4) * 0.33
0.75x = 0.33x + 1.32
Subtract 0.33 from both sides
0.42x = 1.32
Divide both sides by 0.42
x = 3.1429 miles per hour
Distance covered up D = 0.75* x = 0.75 * 3.1429 = 2.357175
Distance covered down D = (3.1429 +4) * 0.33 = 2.357157
Total distance covered = 2.357175 + 2.357175 = 4.71435
you ride your bike in total of 4.71 miles approximately .
Answer:
The total distance covered during riding up and down the mountain is 4.714 miles.
Step-by-step explanation:
Speed of the bike while riding up mountain = X mile/hour
Distance covered be d.
Time taken to cover d distance = 45 minutes = 0.75 hour
(1 hour = 60 min)
...(1)
Speed of the bike while riding down mountain = (X+4) mile/hour
Distance covered while moving down the mountain = d.
Time taken to cover d distance = 20 minutes = 0.33 hour
...(2)
O solving (1) and (2):
we get, d = 2.357 miles
X = 3.143 miles/hour
Total distance covered by us = d + d= 2.357 miles+ 2.357 miles = 4.714 miles
Answer:
The Volume of an Oblique Cylinder:
An oblique cylinder, on the other side, is a cylinder whose base and top are not perpendicular to the sides. Interestingly, the volume of an oblique cylinder is the same as the volume of a right cylinder, and it is calculated as V=πr2h V = π r 2 h .
Step-by-step explanation:
The fraction can be written as in the simplest fraction form.
A fraction is a mathematical expression that represents a portion or a division of an entire. It's utilized to portray numbers that aren't whole numbers or integers. A fraction consists of two factors
1. Numerator: The numerator is the number on the top of the fraction. It represents the quantity or portion of the whole being reckoned.
2. Denominator: The denominator is the number at the bottom of the fraction. It represents the complete number of equal parts into which the whole is divided.
The given fraction is .
.
Hence, .
Learn more about Fractions here:
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Answer:its a i
Step-by-step explanation:
Direct variation means when one quantity is increased the other also increases or when one quantity is decreased the other also decreases.
Therefore as the variable x is decreased to 2 the variable y is also decreased to 26.
Indirect variation means when one quantity is increased the other decreases or when one quantity is decreased the other is increased.
The variations can be solved by unitary method or cross product method
The crossproduct method employs the numbers directly .
x: y
3:39
2: k
Here k is the unknown quantity.
Using the cross product rule
3 × k= 2× 39
k= 78/3= 26
The missing value of k is found to be 26.
y = 26
The equation for direct variation is y = kx ← k is the constant of variation
to find k use the condition y = 39 when x = 3
k = = = 13
equation is y = 13x
when x = 2 then y = 13 × 2 = 26