Six similar machines running at the same steady rate can create a total of 270 bottles each minute. How many bottles might ten of these machines make in four minutes at this rate?
A. 648
B. 1800
C. 2700
D. 10800
Answer:B
Six similar machines running at the same steady rate can create a total of 270 bottles each minute. How many bottles might ten of these machines make in four minutes at this rate?
A. 648 B. 1800 C. 2700 D. 10800
Explanation: Let x be the number of bottles necessary.More bottles, more machinery (Direct Proportion) More bottles, more minutes (Direct Proportion),6 : 10 : 270 : x Time Machines (in minutes),10 x 4 x 270 = 1: 4 6 x 1 x x,10 x 4 x 270 = x/ (6),x equals 1800.