Question

there are 785 students in the senior class. if there are 77 more females in the class than males, how many male and female seniors are there in the class?

Answer 1

let me see

Answer 2

This is a quick substitution problem...

785 students in all...male and female....so

m + f = 785

There are 77 more females...so we have

f = m + 77

Now that we know what 'f' equals...we can substitute this into the original problem...

m + f = 785

becomes

m + (m + 77) = 785

can you solve this from here?

Answer 3

f + m = 785 m = 77 + f

Answer 4

subsstitue and solve with the above equations

Answer 5

77+ f + f = 785 77 + 2f = 785 2f = 708 f = 354

Answer 6

m = 77 + 354 m = 431

Answer 7

check 431 + 354 = 785 :)

Answer 8

and there u go do u understand now

Answer 9

But...as you can see....there are more FEMALES in the class...so there cannot be 431 males and 354 females....it would be switched...

Answer 10

yup

Answer 11

he not replying