Solve the problem.You drive 125 miles along a scenic highway and then take a 20-mile bike ride. Your driving rate is 5 times your cycling rate. Suppose you have no more than a total of 5 hours for driving and cycling. Let x represent your cycling rate in miles per hour. Use a rational inequality to determine the possible values of x.
A. x ? 55.6 mph
B. x ? 9 mph
C. x ? 25.8 mph
D. x ? 9 mph
Answer: B
Mathematics
You might also like to view...
Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 12x -2
B. 12x - 1
C. 12x + 1
D. 
Mathematics
Evaluate the expression according to the replacement value given.(x + y) ÷ 3; replace x with 18 and y with 15.
A. 11 B. 23 C. 21 D. 33
Mathematics
Evaluate the first partial derivatives of the function at the given point. 
?
A. 
?
B. ?
?
C. ?
?
D. ?
?
Mathematics
Find the real solutions of the equation.
= 6
A. {
}
B. {
}
C. {
}
D. no real solution
Mathematics