A metalworker 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?

Jasmine is half the age of her mother was 7 years agoIf Jasmine's mother is turning 34 next year, how old is Jasmine?

Add 5 / 3 8 and 2/1 2

a survery asked 200 people which sports they play regularly. it revealed that 30 played tennis, 25 play golf, 40 play softball, 10 played tennis and golf, 20 played tennis and softball, 15 played golf and softball, and 8 played all three sports.

Which decimal is less than 0.8 and greater than 0.02 A. 0.81 B. 0.46 C. 0.86 D. 0.006

A sixteen sided number cube has the numbers 1 through 16 on each face. each face is equally likely to show after a roll. what is the probability that you will roll an even number or an odd prime number? round to the nearest thousandth

Use two unit multipliers to convert 1250 square inches to square feet

Draw to show regrouping

Sam Monte deposits $21,500 into Legal Bank which pays 6 percent interest that is compounded semiannually. What will Sam have in his account at the end of 6 years?

What is the sqaure root of 45n^5? In Radical Form.

In a survey of 100 Enormous State University students, 25 enjoyed classical music, 20 enjoyed rock music, and 25 enjoyed house music. Five of the students enjoyed both classical and rock.