Answer:
D) 3.28
Step-by-step explanation:
820/x=100/2.5
(820/x)*x=(100/2.5)*x - we multiply both sides of the equation by x
820=40*x - we divide both sides of the equation by (40) to get x
820/40=x
20.5=x
x=20.5
now we have:
2.5% of 820=20.5
Answer:
Step-by-step explanation:
(7x^2-5x+3)
+(2x^2+4x-6)=9x^2-x-3
prettStep-by-step explanation:
There are 8 girls in the class
