The seventh grade class help an end of the year dance. Of the 300 seventh graders, 240 decided to attend. What percent of the seventh grade class attended the end of the year dance?

80 percent

Step-by-step explanation:

Dvide 300 by 240 which gives you 80 percent the amount of students that atended.

80%

Step-by-step explanation:

240/300=.8

.8=80%

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

a

step-by-step explanation: