Ask Experts Questions for FREE Help !
Ask
    dsmith76544's Avatar
    dsmith76544 Posts: 4, Reputation: 1
    New Member
    		  
    #1

    May 15, 2008, 06:08 AM
    How to put this in a formula
    This is what I have so far: 0.2*W + 0.6*J = 0.44*x

    Wilson High School has 400 students, of whom 20% are African American. The school board plans to merge Wilson High with Jefferson High. This one school will then have a student population that is 44% African American. If Jefferson currently has a student population that is 60% African American, then how many students are at Jefferson?
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    May 15, 2008, 06:52 AM
    It would be handy to construct a graph.

    Let x represent the number of students altogether at Jefferson. Then .60x are black and .40x are not black.

    That means 80+.60x = the number of black students at the new school

    .40x+320 = the number of students who are not black.

    400+x are the total number at the new school.

    Therefore, we have the equation:

    .44(400+x)=80+.60x

    Solve for x. That is the total number of students at the new school.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search


Check out some similar questions!

A formula [ 6 Answers ]

Three-fourths of a number increased by 1 is 7. what is the number.

What is the formula [ 1 Answers ]

what is the formula to find the answers for the four cases: use the expanded accounting equation to compute the missing quanity Assets liabilities capitol stock retained Earning $20,000 $8,000 ? ...

What is the formula [ 1 Answers ]

Hello What would you pay for an annuity of $2,000 paid every six months,beginning in 6 months, for 12years if you could invest your money elsewhere at 10% compounded semiannually? How would this change if those payments began immediately?

NE 1 know what this formula is for [ 8 Answers ]

E=2= +a+b E is Epsolon symbol B is Beta symbol It was on Treasure map from 1800's LOOK UPPER left corner area

Formula [ 1 Answers ]

IF( and that is a big if) light were to decelerate at the rate of I 13billionth of its original velocity per year , what would be the formula for computing the distance to the most distant observable objects in the universe: FRED

View more questions Search