Questions in mathematics

Questions in mathematics

[Done] Solve for \( x \): \[ 2\log_a(3) + \log_a(5) = \log_a(x) \]

[Done] What is 3.36 rounded to the nearest hundredth?

[Done] The sum of Alan’s age and Bob’s age is 40. The sum of Bob’s age and Carl’s age is 34. The sum of Alan’s age and Carl’s age is 42. How old is Bob?

[Done] Convert 7 quarts and 2 cups to cups. 7 qt. 2 c. = ______ c.

[Done] Gina charges $28 for 3 hours of lessons. Hector charges $18 for 2 hours of lessons. Who offers a better deal?

[Done] Solve the systems of equations word problem. Flying with the wind, a plane went 183 km/h. Flying into the same wind, the plane only went 141 km/h. Find the speed of the plane in still air and the speed of the wind.

[Done] Calculate the following: 1. [tex]9 \frac{1}{3} \times 4 \times 6 \frac{1}{2} = ?[/tex] 2. [tex]5 \frac{3}{4} \times 8 \times 2 \frac{1}{2} = ?[/tex]

[Done] The surface of Grand Lake is at an elevation of 648 ft. During the current drought, the water level is dropping at a rate of 3 inches per day. If this trend continues, write an equation that gives the elevation in feet of the surface of Grand Lake after \( x \) days.

[Done] The perimeter of a parallelogram is 72 inches, and one side measures 12 inches. What are the lengths, in inches, of the other 3 sides? A. 12, 12, 36 B. 12, 18, 18 C. 12, 24, 24 D. 12, 30, 30 E. Cannot be determined from the given information

[Done] What number is 10% of 14?