Hello!
Since y has to be less than -1 to make it false y has to be greater than -1
The answer 2 or just any number that is greater than -1
Hope this helps!
Answer:
Shdhhdhdhdhdhdhdhdhdhhdhdhdhdhbdbdbdbdhdbdbdjucyxhdhdhdhbdbdbd
Step-by-step explanation:
Hxbxhdhdheyeyyehehdhdhdhdhhdhd
Answer:
Wyzant
Question
Flying against the wind, an airplane travels 4200 km in 7 hours. Flying with the wind, the same plane travels 4000 km in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?
Answer · 1 vote
Let Va = the velocity of the airplane Let Vw = the velocity of the wind When flying with the wind: (Va+Vw)*(4 hours) = 4000 4Va + 4Vw = 4000 4Vw = 4000 - 4Va Vw = 1000 - Va When flying against the wind: (Va-Vw)*(7 hours) = 4200 km7Va - 7Vw = 4200 Substitute 1000-Va for Vw and solve for Va: 7Va - 7(1000-Va) = 4200 7Va -7000 + 7Va = 4200 14Va = 11200 Va = 800 km/hr Rate of wind: Vw = 1000 - Va = 1000 - 800 = 200 km/hour
More
Socratic
Question
Flying against the wind, an airplane travels 4500 in 5 hours. Flying with the wind, the same plane travels 4640 in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?
Answer · 0 votes
The speed of plane in still air is 1030 km/hr and wind
Step-by-step explanation:
Answer:
x(6+7x)
Step-by-step explanation:
Answer:
6k +19
Step-by-step explanation:
7k-k+19
Combine like terms
7k-k = 6k
The expression becomes 6k +19
