SOLUTION: The 6th graders from an elementary school are going to celebrate the end of the year by going to the local pizza parlor. There are 120 in the whole group and there are 2 times as m

Question 145291: The 6th graders from an elementary school are going to celebrate the end of the year by going to the local pizza parlor. There are 120 in the whole group and there are 2 times as many children as adults in the group. How many children are there?
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
Let x = number of adults in group
then from "there are 2 times as many children as adults in the group." we get:
2x = number of children in the group
.
x + 2x = 120
3x = 120
x = 40 <<--adults
2x = 80 <<--children

RELATED QUESTIONS
there are 650 sixth graders in the school and 338 are girls. what percent of the 6th... (answered by addingup)

After school, Nancy skateboards directly from school to an ice cream parlor and then from (answered by ikleyn)

There are 24 9th and 10th graders signed up for after school tutoring. Thirteen of them... (answered by stanbon)

Out of 800 middle school students in the auditorium, 24% were 6th graders. How many... (answered by ikleyn)

The ratio of 5th graders to 6th graders in a chess club was 5:4. There were 32 6th... (answered by Boreal)

- A local pizza parlor advertises that their average time for delivery of a pizza is... (answered by reviewermath)

Bob paid $3 less than Tim at a local pizza parlor. Together they spent $7.80. How much... (answered by nerdybill)

Jim paid $3 less than Tom at a local pizza parlor. Together they spent $7.80. How much... (answered by ReadingBoosters)

At Marble Middle school, 35% of the students are 6th grades, 32% are 7th graders, and the (answered by ikleyn)