Post a New Question

math

posted by .

there are 4 girls in Mrs. Changs class than Mr. Blackwell's.

5 girls moved from Mrs. Changs to Mr. Blackwells.

Now there are twice as many girls in Mr. Blackwells class as there are in Mrs. Changs, How many girls were in Mr. Blackwells class to begin with?

Help, stuck with this problem.

  • math -

    retype the first sentence, it makes no sense and must contain a typo ....

    probably "4 more girls" or "4 less girls"

  • math -

    sorry. it's 4 more girls

  • math -

    make a chart:
    Now....
    Mr Blackwell --- x students
    Mrs Chang ---- x+4

    after move:
    Mr. B ---- x+5
    Mrs. C ---- x-1

    x+5 = 2(x-1)
    x+5 = 2x - 2
    x = 7

    so Mr B had 7, Mrs C had 11

    (Wow! 7 students and 11 students, where do these schools exist ???? I might go back to teaching)

  • math -

    thank you.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

More Related Questions

Post a New Question