Solve the problem.An airplane leaves Los Angeles for Denver at a speed of 440 mph. Thirty minutes later, a plane going from Denver to Los Angeles leaves Denver, which is 850 miles from Los Angeles, at a speed of 530 mph. When they meet, how far are they from Denver?
A. 122 mi
B. 61 mi
C. 344 mi
D. 305 mi
Answer: C
Mathematics
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Find an equation of the inverse relation.8x2 + 6y2 = 5
A. 8x2 - 6y2 = 5 B. 8x2 + 6y2 = 5 C. 8y2 + 6x2 = 5 D. 8y2 - 6x2 = 5
Mathematics
Write the number in scientific notation.0.0061
A. 6.1 × 10-4 B. 6.1 × 10-3 C. 6.1 × 103 D. 6.1 × 104
Mathematics
Divide and simplify.
÷ 
A. 
B. 
C. 
D. 
Mathematics
Solve.In a track meet, Ashley runs 400 meters in 53.4 seconds. What was her average speed in meters per second? (Round to the nearest tenth.)
A. 1.3 m/s B. 74.9 m/s C. 0.1 m/s D. 7.5 m/s
Mathematics