25=2,500, 278= 27800%, 2.9=290, 3.0=300, 0.67= 67
Answer:
200
Step-by-step explanation:
2000 girls :1000 boys
2000 +1000 =3000
20% of 3000 = 600
I girl : 2 boys
1+2=3
600÷3 = 200
200 boys wore glasses
For this case we have the following quadratic equation:
The solutions will be given by:
Where:
Substituting the values we have:
We have two roots:
ANswer:
Answer:
90.3125 cm³
Step-by-step explanation:
Since the perimeter of the bottom square is 17, you can divide by four to find out what the lenght of each side is.
17/4=4.25 cm
We know the height of pyramid is 15 cm
The formula for the volume of a square pyramid is
V=a²(h/3)
V=a2(h/3)=4.252·15/3=90.3125 cm³
Answer:
(-2,1) and (3, -4)
Step-by-step explanation:
(-2,1) and (3, -4) this is where the lines intersect, hence these are the solution. :) have a great night!
