Answer: it is hard :((
Step-by-step explanation:
The Required ratio between the speed of the boat and speed of the water current is 8:3.
<h3>What is ratio?</h3>
In mathematics, a ratio indicates how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six.
Given:
Upstream time= 8 hr 48 = 8 4/5 hour
Downstream time= 4 hour
Let the man's rate upstream be x kmph and that downstream be y kmph.
Then,
distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.
x* 8 hr 48 min = y* 4 hours
x* 8 4/5= 4y
y= 11/5 x
Now,
Required ratio
(y+x)/2:(y-x)/2
= (16x/5 * 1/2): ( 6x/5 *1/2)
=8/5:3/5
=8:3
Hence, the required ratio is 8:3.
Learn more about ratio here:
brainly.com/question/13419413
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Mean = Sum of all data divided by number of data
= (6 + 14 + 10 + 6 + 4 + 8) / 6 = 8. (C)
15 = rate * 40
rate = 15/40
rate = 0.375 * 100% = 37.5%
2. You would use liters for a bathtub.
3.You would use milliliters for a medicine capsule.
