Ametalworker has a metal alloy that is 15% copper and another alloy that is 75% copper. how many kilograms of each alloy should the metal worker combine to create 90 kilograms of a 51% copper alloy?

The local farm is advertising a special on fresh picked peaches. the farm charges $4.25 to pick your own peck of peaches and $3.50 for each additional peck you pick. write an equation for the total cost of peaches in terms of the number of pecks. deine your variables. how much does it cost to pick 3 pecks of peaches?

If angle 2=3x +1 and angle 3=2x +4what is angle 2

What is the prime factorization of 230