10. He will need 11,4 minutes to get to sea level. To get to 30 he'll need 6 minutes.
11. He'll be able to cut 4 complete pieces.
Is she runs each lap in 7 min then 56 min you would divide it so 56/7=8
Answer:
p = 18 in
a = 25 in²
Step-by-step explanation:
perimeter = sum of the sides
p = 4 1/3 + 5 1/3 + 8 1/3
p = 18 in
Area = 1/2 * base * height
a = 1/2 * 8 1/3 * 6
a = 1/2 * 50
a = 25 in²
The LCD of the denominator is 12. For this one it is possible to just 'see' that 6 is a divisor of 12. When in doubt, you can always get an answer by just multiplying the denominators. (ie., you can turn 11/12 into 66/72 and 1/6 into 12/72).
In this case, the easiest is to convert 1/6 into 2/12. (multiply both numbers by 2).
Then it becomes: