Ratio is 5girls:7boys with total 72 students
5+7= 12
72➗12= 6
6(5:7)= 30 girls : 42 boys
New ratio is 3:4 with 48 boys
48➗4= 12
So for girls 3x12= 36
<span>So started with 30 girls ended with 36 girls... 6 girls joined band during the school year.</span>
C = 1/2
To get this answer, follow these steps:
19 - 4c = 17
Subtract 19 from both sides:
-4c = -2
Divide by -4 on both sides:
c = 1/2
Hope this helps!
The second table shows the frequency of the test times. There are 4 numbers that fall between 50-59, 7 between 60-69, 6, between 70-79 and 3 between 80-89
I'm gonna go ahead and assume you're asking me to solve ((2x+1)(3x-2))/(24x^2-4x-8).
((2x+1)(3x-2))/(24x^2-4x-8)
1. Factor out the common term 4.
((2x+1)(3x-2))/(4(6x^2-x-2))
2. Split the second term in 6x^2-x-2 into two terms.
((2x+1)(3x-2))/(4(6x+3x-4x-2))
3. Factor out common terms in the first two terms, then in the last two terms.
((2x+1)(3x-2))/(4(3x(2x+1)-2(2x+1)))
4. Factor out the common term 2x+1
((2x+1)(3x-2))/(4(2x+1)(3x-2))
5. Cancel 3x-2
1/4
The answer to your question is 1/4.