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Ket [755]
4 years ago
8

The distance d, in meters, that a rhinoceros runs in s seconds is represented by the equation d=16s. What is the constant of pro

portionality (unit rate) of d to s?
Mathematics
1 answer:
castortr0y [4]4 years ago
3 0
Time          Distance                Distance / Time
2hrs          90 miles                  90 miles / 2 hrs =  45 miles / hr
3hrs          135 miles                135 miles / 3 hrs =  45 miles / hr
5hrs          225 miles                 225 miles / 5 hrs =  45 miles / hr
6hrs          270 miles                  270 miles / 6 hrs =  45 miles / hr

Constant of proportionality is 45 miles / hr. This is the same for the four values. The unit rate is also 45 miles / hr.

Let us assume the Distance , d is directly proportional to Time, t
d α t
d = kt 
Constant of proportionality is k which is D/T
d = 45t 

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1/6d + 2/3  = 1/4(d-2)
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Multiplying both sides by <em>1/(4d-8)
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3 years ago
a car uses an average of 6 litres of fuel per 100kilometres if the car uses 9 litres of fuel what is the distance covered?​
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Answer:

150 kilometres

Step-by-step explanation:

Imagine it as a ratio 6 : 100

If they have given you the first side which is 9 you need to figure out the other side (9 : ?)

To do this you simply need to figure out how you get from 6 to 9 which is times by 1.5

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