Question

In the set of consecutive integers from 15 to 30 inclusive, two integers are multiples of both 3 and 5. How many integers in this set are multiples of neither 3 nor 5 ? please help me adn you get cookie

Answer 1

Answer:

Step-by-step explanation:

To make it easy let's list the integers that are beetwen 15 to 30 inclusive :

15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30

• the numbers that are multiples of both 5 and 3 are ending with 5 and 0 and the sum o their digits is a multiple of 3
• 15,30 oly the values

the the whole interval ]15,30[ is the answer

Answer 2

Answer: There are 8 integers that are multiples of neither 3 nor 5:

16,17,19,22,23,26,28,29

Step-by-step explanation:

Just list the numbers in the set, eliminate the multiples of 3 or 5 and see what numbers are left.