Answer:
the answer of this question is 1.25
Answer:
30%
Step-by-step explanation:
if 50 are orange, that is half, then there are 30 left. meaning 30%
hope this helps!
Answer:
To find the value of y, you need to isolate the variable. To do this, add 21 to -12. This gives you 9. Now, you're equation is set as 9 = y. This means that the value of y is 9.
Step-by-step explanation:
Answer:
My answer was wrong :/
Step-by-step explanation:
My answer was wrong :/
Answer:
The number of ways to form different groups of four subjects is 4845.
Step-by-step explanation:
In mathematics, the procedure to select k items from n distinct items, without replacement, is known as combinations.
The formula to compute the combinations of k items from n is given by the formula:

In this case, 4 subjects are randomly selected from a group of 20 subjects.
Compute the number of ways to form different groups of four subjects as follows:



Thus, the number of ways to form different groups of four subjects is 4845.