The answer would be 640. To find the number of how many copies are produced in 1 minute you have to write 80 divided by 5 which equals 16. Now you multiply 16 and the 40 minutes which gives you 640 copies.
100% of her middle school class = 56
200% of her middle school class = 112 (56 x 2)
25% of her middle school class = 14 (56/4)
225% of her middle school class = 126 (112 + 14)
There are 126 students in her high school class.
Largest doll = 12 inches
2nd doll = (12) x 0.7
3rd doll = (12 x 0.7) x 0.7
4th doll = [(12 x 0.7) x 0.7) x 0.7
So, the height of the nth doll can be expressed as: 12 x 0.7^(n-1)
Example: 4th doll = 12 x 0.7^(4-1) = 12 x 0.7^3
The friction force is equal to the normal force by the object equal to the weight of the object multiplied by the coefficient of friction. In this case, we substitute to the equation
4.9 N * 9.8 m/s2 = 20 N * ukuk is equal then to 0.245.