Answer:
30 days(To the nearest tenth of a day)
Step-by-step explanation:
In this question, we are asked to give the number of days that a baby whale had grew to a size given the rate at which it grows per day.
We have been told that after the first day, it started growing to a point of 47.075 inch at a rate of 1.5 inch a day.
The number of days taken for this growth can be calculated by dividing the present size by the daily growth rate.
Mathematically, that is 47.075/15 = 31.38333
Now, we are told to convert this to the nearest tenth of a day. The value here should thus be 30.
Answer:
291.666666667
Step-by-step explanation:
one minute is 60 seconds
17500 divided by 60
291.666666667
Answer:
77.14 minutes.
Step-by-step explanation:
Jack's time = 3 hours
Jill's time = 2.25 hours = 2 1/4 = 9/4 hours
Combined time = x
Rates :
Jack = 1/3 ; jill = 1 / 2.25 = 1 / 9/4 = 4 /9
Combined rate = 1/x
Setting up the equation :
1/3 + 4/9 = 1/x
Lcm of 3 and 9 = 9
(3 + 4) / 9 = 1/x
7/9 = 1/x
Cross multiply :
7x = 9
x = 9/7 hours
x = (9/7)* 60
x = 77.14 minutes
Combined time = 77.14 minutes.
The area is 80 I may not be completely right but that is what I got
I hope this helps
