2 years ago

Please help!! Maths question I don't understand!

Mathematics

1 answer:

djverab [1.8K]2 years ago

4 0

Answer:

see explanation

Step-by-step explanation:

The statements tells us that w is inversely proportional to v and the equation relating them is

v = $\frac{k}{w}$ ← k is the constant of proportion

To find k use the condition v = 9, w = 5, that is

9 = $\frac{k}{5}$ ( multiply both sides by 5 )

45 = k

v = $\frac{45}{w}$ ← equation of proportion

When w = 4 , then

v = $\frac{45}{4}$ = 11.25

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Helpppp pleaseeee ????

Agata [3.3K]

Answer:

LQ = 54

Median = 69

UQ = 94

Step-by-step explanation:

This list is already sorted for you, so you don't need to worry about that, otherwise you would need to sort the numbers in ascending order. To find the median, we do $\frac{n+1}{2}$ , where n is the amount of numbers. This gives us 4, so the median is at position 4, so the median is 69. The lower quartile is simply $\frac{n+1}{4}$ , so 2, so the lower quartile is 54. The upper quartile is $\frac{n+1}{2} X 3$ , so 6, so the upper quartile is 94.