Answer:
20 people. Because 5 already came to the party. 1/3 of his relatives came is 5, so multiply 5 by 3, then add 5. You get 20 people.
Step-by-step explanation:
Five classmates came to Dan’s birthday party. This is half as many as the number of his summer camp friends who came and one-third of the number of his relatives that came. How many people were at Dan’s birthday party?
classmates: 5
camp friends: 5 x 2 = 10
relatives: 5 x 3 = 15
Number of people at Dan’s birthday party: 5 + 10 + 15 = 30
