Posted by **Hossein** on Thursday, January 20, 2011 at 7:49am.

There are 51 students in a certain class. The number of females is 5 less than 3 times the number of males. find the number of females and the number of males in the class.

- algebra -
**Neil**, Thursday, January 20, 2011 at 7:55am
Find three consecutive integers such that the sum of the smallest and largest integer is equal to twice the middle number

- algebra -
**Reiny**, Thursday, January 20, 2011 at 8:47am
number of males --- x

number of females --- 3x-5

Can you form the equation from here and solve it?

- FOR NEIL -algebra -
**Reiny**, Thursday, January 20, 2011 at 8:52am
Please do not post a new question as a reply to somebody else's problem.

Tutors might think it has been answered and not look at it.

I will set it up for you...

1st integer ---- x

2nd integer ----x+1

3rd integer ----x + 2

"smallest plus largest equals twice the middle"

x + (x+2) = 2(x+1)

solve....

ahhh, glancing at this equation it is obvious that you will get

0=0

that means that it will be true for all consecutive even integers.

e.g. let's try 4,5,6

is 4+6 = 2(5) ? YES

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