A ship sails north for 2 hours, traveling a total of 15 miles. Then the ship turns south and travels 6 miles in an hour.
1 answer:
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Answer:
17.7778
Step-by-step explanation:
nSolve(1/4n + 1/5n = 8,n)
Solved with TI-nspire CX
Answer: x= -2 and y= -3.
Step-by-step explanation:
The given system of equations :
4x-7y=13 ...(i)
4x + 7y = -29 ....(ii)
By Elimination method, Eliminating (ii) from (i) , we get
Now, Adding (i) and (ii), we get
Hence, the solution is : x= -2 and y= -3.