So,
To find the GCF, you have to factor all of the numbers.
21 --> 3 * 7
24 --> 2 * 2 * 2 * 3
27 --> 3 * 3 * 3
Next, you find all the factors that they have in common.
They all have at least one 3, so that means that 3 is the greatest common factor of 21, 24, and 27.
Answer:
1:25
Step-by-step explanation:
if you divide 575 by 23 you get 25, therefore there are 25 students per 1 teacher
To solve this problem, you read the problem backwards and to the opposite of that function.
- if it says double --> divide by 2 22 / 2 = 11
- subtract by 19 --> add 19 11 + 19 =30
- multiply by 5 --> divide 5 30 / 5 = 6
Thus the number that is thought of is 6
Hope that helps!
the first one is 9
I don't even understand the question
