In how many ways can we write a number using the digits (0,2,3,5) and the number is greater than 100

This is a multiplicative principle's question. Let's think how we can solve that.

If we want numbers are greater than 1000, so we need numbers with 4 digit (for example: 1001, 2350 and so on).

Imagine that we need to complete four spaces: one thousands, hundreds, tens and ones. See below how to compelete each space:

For multiplicative principle, we just need multiply these numbers of possibilities to find the result of this question:

Therefore, we can write 192 numbers using the digits (0, 2, 3 and 5) and all these numbers are greater than 1000.

probability for j is 1/4

while

a is 1/6

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: