Solve the problem by using two equations with two variables.A twin-engined aircraft can fly 1050 miles from city A to city B in 5 hours with the wind and make the return trip in 7 hours against the wind. What is the speed of the wind?
A. 30 mph
B. 45 mph
C. 60 mph
D. 15 mph
Answer: A
Mathematics
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Graph the equation.0.2x + 0.5y = 2
A. 
B. 
C. 
D. 
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse function.f(x) = 
A. one-to-one function; f-1(x) = 
B. one-to-one function; f-1(x) = 
C. one-to-one function; f-1(x) = -2x
D. not a one-to-one function
Mathematics
Find the indicated intersection or union.{s, u, g, a, r} ? {s, a, l, t}
A. {s, u, g, a, r, l, t} B. {s, a, l} C. {s, a} D. {s}
Mathematics
Find the intercepts and then graph the line.2.6y - 1.9x = 9.88
A. (0, 5.2); (3.8, 0)
B. (0, -3.8); (-5.2, 0)
C. (0, -5.2); (3.8, 0)
D. (0, 3.8); (-5.2, 0)
Mathematics