Answer:
Option J
Step-by-step explanation:
Newton's Universal Law Of Gravitation
Newton discovered that all objects attract each other with a force of gravitational attraction which is proportional to their masses and inversely proportional to the square of the distance between them.
Where 
are the masses in kg and d is the distance between them in meters.
In the problem, we have
Answer:
10
Step-by-step explanation:
We're looking for 5 + 5:
x = 5 + 5
Since 5 + 5 = 10:
x = 5 + 5
x = 10
Answer: 10
R + b = 21
2b = r
now we sub eq 2 into eq 1
r + b = 21
2b + b = 21
3b = 21
b = 21/3
b = 7
2b = r
2(7) = r
14 = r
so there are 7 bluejays (b) and 14 robins (r)...for a total of 21
Answer: 
Step-by-step explanation:
you would multiply by 3 on both sides to get the division to go away.
then subtract 8 from both sides.
then you have your answer
For this case, the first thing we must do is define variables:
x: number of quarters
y: number of nickels
We now write the system of equations:
x + y = 68
0.25x + 0.05y = 13.40
Solving the system we have:
x = 50
y = 18
Answer:
they have:
quarters = 50
nickels = 18
