Noah and his friend tyree are involved in a math challenge.

noah solves 115 problems in 2 min.
tyree solves 172.5 problems in 3 min.
who solves more problems per minute?

question 5 options:

a)

noah solves more per minute

b)

tyree solves more per minute

c)

they solve the same number of problems per minute

d)

not enough information

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

For what value of x does 4x = (1/8) x + 5?

Points a, b, and c form a triangle. complete the statements to prove that the sum of the interior angles of triangle abc is 180