Answer:
3
Step-by-step explanation:
<span>They arrive at a ratio of 10 flights to every 15 minutes which is 10:15. There are 4 x 15 minutes in an hour of 60 minutes. 10 x 4 is 40. The ratios are 10:15 and 40:60.</span>
Answer: D) 968
Step-by-step explanation:
48 x 24 = 1152 (total pencils)
8 x 23 = 184 (total pencils given to all 23 students)
1152 - 184 = 968 (extra pencils)
Answer:
It should be 4
Step-by-step explanation:
The formula for volume is V = (L)(W)(H). Length, width, and height are multiplied together. In this case, height is thickness. Since we are given the total area, length, and width, we just need to solve for the height/thickness. Plug in the given values:
225 = (25)(18)(H)
225 = 450*H
H = 225 ÷ 450
H = 0.5
The concrete slab is 0.5 feet thick.