The inequality 12x+9 ≥ 21 represents the minimum rate Chanita have to swim on second day to complete the distance.
Step-by-step explanation:
Given,
Length of English Channel = 21 miles
Distance covered on first day = 9 miles
Time to complete remaining distance on second day = 12 hours
Let,
x be the distance covered per hour on second day.
Time to cover distance * Distance covered per hour + Distance on first day ≥ Total distance
12x+9 ≥ 21
The inequality 12x+9 ≥ 21 represents the minimum rate Chanita have to swim on second day to complete the distance.
Keywords: addition, inequality
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Answer:
16.1km
Step-by-step explanation:
All you need is his total distance (10 miles). Then you use dimensional analysis (or unit multiplying).
Try factoring out a 2x from the first 3 terms in the question, like so:
Now, you can factor the middle quadratic equation and you will have 3 factors plus the constant in the end (the +9). Hope this helps!
Answer:
Step-by-step explanation:
18600/60/60=5.167 hours
Answer:
d = 19/5 or, 4.75 in decimal form
Step-by-step explanation: