Given:
A spinner is divided into 8 equal sections where 3 are black, 4 are yellow, and 1 is red.
To find:
The probability of it landing either on a yellow or a red section.
Solution:
We have,
Total number of sections = 8
Black sections = 3
Yellow sections = 4
Red sections = 1
Now,
Either yellow or red sections = 4 + 1
= 5
Now, the probability of it landing either on a yellow or a red section is:
Therefore, the required probability is .
Answer:
$450
Step-by-step explanation:
Let E be the amount of money Ethan starts with, J be the amount Jun Wei starts with, and R be the amount Raj starts with. Let M be the total amount of money to start with.
To start:
This means Ethan has 5/20 of M, the money to start with. This reduces to 1/4 of M.
Afterwards:
This means Ethan has 3/13 of the remaining money (which is M-50!) after giving up 50. So
E = (M/4), or 4E = M
and
We know 4E = M, so we can substitute that in:
That's how much money Ethan had to start with. But we're asked how much he has AFTER giving $50 away, so that's $450.
Answer:
n=4
Step-by-step explanation:
=n