Make the table and cross multiply
Answer:
24x
Step-by-step explanation:
=6x×4+24x×3-72x
=24x+24×3x-72x
=24x+72x-72
=24x
Answer:
1
-----------
-3
Step-by-step explanation:
(9, -2) (-3, 2)
2- -2 4 1
--------------- = --------------- = ---------------
-3-9 -12 -3
(simplifyed)
Answer:
18 feet
Step-by-step explanation:
5 years to 30 years is 6
6x5=30
3x6=18
Answer:
126 groups
Step-by-step explanation:
we know that
This is a combination problem, because the order doesn't matter. He has 9 toys and wants to know the number of different combinations of 5 he can take.
The formula for the number of possible combinations of r objects from a set of n objects is given by

In this problem we have

substitute




