Answer:
2--r
Step-by-step explanation:
Answer:
90? He score for the class fast and easy
The answer is 4.
Here's how to solve it.
Remove parentheses:
=20 × 7/35
7/35 = 1/5
Cancel the common factor 7:
=1/5
=20 × 1/5
Multiply fractions:
1·20/5
Simplify:
20/5
Divide
20/5=4
Hope this helped! :)
The greatest common factor for 48 and 60 is:
12
Answer:
5120
Step-by-step explanation:
divide the entire group into 10 groups where each group has a man and his wife.
number of ways of selecting 9 groups is 10C9 which equals 10 ways
the number of ways selecting 1 person from a group is 2C1 =2 .
So that means the number of ways of selecting 1 person from 9 groups is 2^9=512
number of ways to form the committee is 10*2^9=5120
