Answer:
7 Hours 12 Minutes
Step-by-step explanation:
So they one of the printer increases at a rate of 1/12 and the other increases at a rate of 1/18. Since you don't know the time it actually takes, you will replace both numerators with and x. (x/12 and x/18). You want to set these up so that they are adding. (x/12 + x/18=1). Since you're adding, you want to change it to the same denominator. The lowest is 36 so you multiply x/12 by 3/3 (so you don't unbalance the equation) and x/18 by 2/2. You'll end up with 3x/36 + 2x/36= 1 which will simplify to 5x/36=1. Multiply each side by 36 to leave the variable by itself. It becomes 5x=36 and when you divide it by 5 you get 7.2. So it's seven and .2 hours, which is equivalent to7 and 1/5 of an hour or 7 hours and 12 minutes.
Answer:
Volume of the sphere up to two decimal places= 
cubic yards
Surface area of the sphere up to two decimal places 
square yards
Step-by-step explanation:
Given:
The radius of the sphere= 1 yard
Volume of a Sphere:
:
cubic yards
Volume of the sphere up to two decimal places= cubic yards
Surface area of the sphere= 
Surface area of the sphere up to two decimal places square yards
Answer:
Step-by-step explanation:
2x+3x=4
5x=4
x=4/5
Answer:
-2x+1 ez clappppppppppppppppppppp
Answer:
b
Step-by-step explanation:
The inscribed angle 36°m is half the measure of its intercepted arc, that is
b = 2 × 36 = 72
c = 360 - (108 + 72) = 360 - 180 = 180 ( total sum of arcs in a circle )
The angle between a tangent and the radius of a circle at the point of contact is 90° , then
d = 90
Thus b = 72, c = 180, d = 90 → b
