The sum of John's age and five times Mary's age is 89. The sum of Mary's age and twice, John's age is 52. Write and solve a system of equations to find both of their ages?

What is the length of chord cd in o below

In 25 minutes, Jay can run 10 laps around the track. Write an equation to represent the relationship.

What is the answer to this priblem-13+-11=

Suppose a six-sided die has one side numbered with a 9, two sides numbered with a 10, two sides numbered with an 8, and one side numbered with an 11. What is the expected value of a die roll on this die?

What is the volume of a triangular prism 5m 13m 6m

A recipe calls for cup of broth. The largest volume-measuring tool that Tabitha has is a teaspoon. She knows that there are 16 tablespoons in 1 cup and 3 teaspoons in 1 tablespoon.

Find all zeros of 2x4 - 5x3 + 53x2 - 125x + 75=0

Which expression is equal to - 33 when x = - 5

Anthony has the equations of three lines: A, B and C. When he solves a system with equations A and B, he gets no solution. When he solves B and C, he gets infinite solutions.

A bakery supplier receives an order for 2 tons of sugar from a bakery chain. The sugar is shipped in crates. Each crate holds eight 10-pound bags of sugar. How many crates does the supplier need to ship to fulfill the order?