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
So started with 30 girls ended with 36 girls... 6 girls joined band during the school year.
1 mg = 0.001 grams. therefore 2000 mg = 2 grams
Firstly, subtract a^2 on both sides: 
Next, we are going to be using the difference of squares, which is 
. Use this on the right side of the equation: 
Lastly, square root both sides of the equation, and <u>your answer will be 
</u>
Answer:
6^2 + 5^2 = d^2
Step-by-step explanation:
I hope this helps!!
