Questions in mathematics

Questions in mathematics

[Free] Solve the formula \(d = rt\) for \(t\). Find the time in hours it would take Van Dyk to travel 26.2 miles if his average speed was 18 miles per hour. Round to the nearest hundredth.

[Free] Suppose a 5-minute overseas call costs $6.95 and a 10-minute call costs $11.90. Write and solve a linear equation to find the cost of making an 18-minute call.

[Free] Rachel's cell phone company charges $0.10 per minute. She used 350 minutes last month and paid $84. Write and solve a linear equation to find what her bill will be if she uses 300 minutes next month.

[Free] The area of a library tabletop is 27 1/8 square feet. The table is 3 1/2 feet wide. What is the length of the table?

[Free] Write "p divided by 6" as an algebraic expression.

[Free] Solve this equation: \[ -9h - 6 + 12h + 40 = 22 \]

[Free] Logan and his friend went out to dinner and spent $18.50. They left a tip of $2.59. What percent tip did they leave?

[Free] The sum of 185 and h as an algebraic expression.

[Free] Two children had 110 marbles between them. After one child lost half of her marbles and the other lost 20, they had an equal number. How many marbles did each child start with, and how many did they finish with?

[Free] How do you solve the system of equations? \[ y = x \] \[ x - 4y = 0 \]