Answer:
D
Step-by-step explanation:
you can reason this concretely.
suppose you start with 60 bugs.
1/5 of the 60 bugs is 12 bugs
divide 12 bugs into 3 equal groups. each group has 12/3 = 4 bugs.
the fraction now is 4/60
in lowest terms this is 1/15
Hey there!!
Word expressions for 15 - b :
( 1 ) b is subtracted from 15
( 2 ) 15 is added to negative b
( 3 ) 15 minus b
( 4 ) 15 reduced by b
Here are some ways I would write these expressions as , choose 2 equations for your answer...
Hope my answer helps!!
We have to choose 3 teachers from a group of 7 teachers, then, the amount of combinations is given by
We have to choose 3 students from a group of 8 students, then, the amount of combinations is given by
Since we have to choose a committee simultaneously formed by 3 teachers and 3 students, we want the intersection of those combinations, which is given by their product
The formula for a combination is given by
Then, we have