Solve the problem.On a recent trip, Sarah's car traveled 20 mph faster on the first 110 miles than it did on the remaining 80 miles. The total time for the trip was 4 hr. Find the speed of Sarah's car on the first part of the trip.
A. 38 mph
B. 58 mph
C. 31 mph
D. 9 mph
Answer: B
Mathematics
You might also like to view...
Multiply. Simplify by combining like terms.(a + 0.9b)2
A. a2 + 1.8ab + 0.81b2 B. 2a2 + 1.8b2 C. a2 + 0.81ab + 0.81b2 D. a2 + 0.81b2
Mathematics
Verify the identity.tan2 x = sec2 x - sin2 x - cos2 x
What will be an ideal response?
Mathematics
Solve the differential equation. 
What will be an ideal response?
Mathematics
Find the function value.f(-2)
A. -9 B. -7 C. -8 D. -11
Mathematics