We have to choose which set of integers is included in ( -1, 3 ]. Integers that are included in this set are: 0, 1, 2, 3. Set number 2 is not included because -1 is not among those integers. Set number 3 is not included because it has numbers - 1 and 4. Set number 4 is not included because numbers - 2 and - 1 are not in the interval ( - 1 . 3]. Answer: (1) { 0, 1, 2, 3 }.<span> </span>
Lets first numbers is x, second is (x+2), third is x+4
sum is x+(x+2)+(x+4)=87
3x+6=87
3x=81
x=27
Answer: smallest number is 27
Answer:
5995 hugs
Step-by-step explanation:
This is a combination problem: we want to make groups of two monkeys, where a pair of monkey 1 and 2 is the same pair of monkey 2 and 1 (it is the same hug). So, if the total number of monkeys at the zoo is 110, we have a combination of 110 choose 2:
C(110,2) = 110! / (2! * (110-2)!) = 110 * 109 / 2 = 5995
So the total number of hugs is 5995
I'll give you a study tip. If you actually just break down the problem it's much easier. See how it says 5 tens, it's basically asking you what is 5 times 10
Answer:
The first unknown number is 10 the second is 20 and the third is 60
Step-by-step explanation
Since there is six numbers you have to multiply 25 times 6 = 150
Then 15+15+30=60
150-60= 90
10+20=30
30 times 2 equals 60
30+60=90
90+60= 150
150 divided by 6 = 25
