Answer:
It is correct because the smallest one is 3 the second one all together is 15 and the last one is 60.
Step-by-step explanation: Basically you can divide the 60 with 15 and you can divide 60 with 3.
60/15 = 4
60/3 = 20
and 4 can go in to 20 5 times so yeah.
And I hope I helped you out.
Answer:
how do i brush my teeth???????????????????????????????
Step-by-step explanation:
The number of different groups can be found by finding 9C3 (Using combinations)
We will find combinations from n = 9 to r = 3
Therefore, 9C3 = 9!/6!*3! = (9*8*7*6!)/(6!*3*2)
= 3*4*7
= 84 ways.
We can express it at 5 (a+6)
9ft²=1student
xft²=66students
9ft² xft²
_______=_________
1student 66students
Cross multiply
1x=594
divide both sides by 1
x=594ft²
Answer=594ft²