Solve the problem by using two equations with two variables.An 8-cylinder SUV gives 18 miles per gallon in city driving and 21 miles per gallon in highway driving. A 300-mile trip required 15.5 gallons of gasoline. How many whole miles were driven in the city?

A. 168 miles
B. 132 miles
C. 147 miles
D. 153 miles


Answer: D

Mathematics

You might also like to view...

Use Taylor's formula to find the requested approximation of    near the origin.Cubic approximation to  

A. 1 - 2x - 18y + 3x2 + 72xy + 243y2 - 4x3 - 108x2y - 972xy2 - 2916y3 B. 1 - 2x - 18y + 3x2 + 54xy + 243y2 - 4x3 - 108x2y - 972xy2 - 2916y3 C. 1 + 2x + 18y - 3x2 - 72xy - 243y2 + 4x3 + 108x2y + 972xy2 + 2916y3 D. 1 + 2x + 18y - 3x2 - 54xy - 243y2 + 4x3 + 108x2y + 972xy2 + 2916y3

Mathematics

Use the square root property to solve the quadratic equation.2x2 + 4x + 5 = 0

A.
B.
C. no real solution
D.

Mathematics

Solve. Write the answer in simplest form.Approximately  of a worldwide corporation's employees live and work in the United States. If 5973 employees live and work in the United States, how many employees does the corporation have worldwide?

A. 1629 employees B. 543 employees C. 21,901 employees D. 1991 employees

Mathematics

Perform the indicated operations. Write the resulting polynomial in standard form.(2x6 + 2x5 + 3) - (7x6 - 11x5 - 20)

A. -5x6 + 13x5 + 23 B. -5x6 + 13x5 - 17 C. -5x6 + 9x5 - 17 D. 31x11

Mathematics