Numbers are n, n+2 and
n(n+2)=195
n^2+2n-195=0
Using the quadratic equation n=13
And n+2=15
You are correct the answer is a:18
You would have to find the volume of the cone, and subtract it from the volume of the cube. Here, I did it for you. 78.237 cm cubed :)
Answer:
20 minutes.
Step-by-step explanation:
Since it takes 5 people to paint 5 walls 20 minutes, that means that it would take 1 person 20 minutes to paint 1 wall. That also means that 2 people would take 20 minutes to paint 2 walls. So, it would take 9 people 20 minutes to paint 9 walls.
Hope this helps!
The variable in an expression, is the symbol that can be substituted for any other number. The coefficient is the number that is being multiplied by that variable. In this case, the variable would be s because any number can be plugged in for that. The coefficient is 20 because that is the number being multiplied by s.
