Answer:
20(x)=75
Step-by-step explanation:
x= unknown number
product= multiplication equation
Answer:
1/3 a room
Step-by-step explanation:
we know that
A painter can paint 1/2 a room in 1 1/2 hours
so
using proportion
Find out how many of the same-sized rooms can he paint per hour
Remember that
Let
x -----> the number of the same-sized rooms
Answer: 50.24
4 • 3.14 = 12.56
12.56 • 4 = 50.24
Answer:
One- half
Step-by-step explanation:
Since the density is uniform
Mass of the sphere = [(4/3) π r^3] d
where d is the uniform density.
Mass of the sphere = [(4/3) π d] r^3 = k r^3
where k = [(4/3) π d] is a constant
Weight = mg = G m M / r^2 = G m [k r^3] /r^2 = G m k r
Using Gauss’ law for gravitation,
Half way to the center of a planet the weight is only due to the inner sphere and the outer sphere does not contribute to his weight,
Inside his weight is mg’ = (G m k r) /2 = mg/2
Answer is one-half.
