8 students made 4 mistakes or more
Answer:
10 hours
Step-by-step explanation:
volume of lower portion = 85x125x40 = 425,000
volume of upper portion = 20x30x125 = 75,000
in 1.5 hours, the pump removed 75,000
in one hour it removed 50,000 (75000/1.5 = 50,000)
425,000 / 50,000 = 8.5 hours for bottom portion
8.5 + 1.5 = 10 hours total time for top and bottom
Answer:
Step-by-step explanation:832
Length(width + 30)=15,000 square meters, so the equation is l(w+30)=15,000, either 15,000 or 1,500 i cannot tell which number you were meaning to say because of where your comma is placed.
1 x 7 = 7
2 x 7 = 14
3 x 7 = 21
4 x 7 = 28
5 x 7 = 35
7,14,21,28,35
I hope that's help !