There are 60 sixth graders at wilson middle school. only 70% of the sixth graders will attend the morning assembly. how many sixth graders will be at the morning assembly? 62 52 42 32

The answer is 42.Explanation:

We know that there are 60 six graders.

We also know that 70% equals .70

To find out how many six graders will be at the assembly, multiply.

This is the formula:  60*.70 = x

x = 42

So,

There will be 42 six graders at the assembly.

, and

for

step-by-step explanation:

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

1 the 1st term, 3 the 2nd term, 6 the 3rd term,etc.

note the following:

from the 1st term (1) to the 2nd term (3), we go up by 2,from the 2nd term (3) to the 3rd term (6), we go up by 3from the 3rd term (6) to the 4th term (10), we go up by 4, andfrom the 4th term (10) to the 5th term (15), we go up by 5.

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

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