Answer:
Cost of Trumpets: $174
Cost of Clarinets: $149
Cost of Violins: $89
Step-by-step explanation:
Got it correct
Answer:
Step-by-step explanation:
Answer:
x = -10
Step-by-step explanation:
We just have to translate the problem correctly
>8 times a number is the same
this tells me that

>as 30 less than 5 times the number.

Now set them equal to eachother

Now isolate the variable x

Answer:
3 students would get 10 markers
Step-by-step explanation:
The answer is:
A Ramdom variable is a function that assigns a numerical value to every possible outcome in a sample space.
It is a number that represents a result of an event or a random experiment. This variable does not depend on other factors and its values are random, without a specific order. For example: when you roll a dice, the number that you get is a random variable, because in 6 attempts you may get 1,6,4,2,2,5 and then, in another 6 attempts, you may get 3,3, 6,2,1,6.