Amixture that is 80% copper is combined with a mixture that is 60% copper resulting in 100 pounds of brass that is 65% copper which equation can be used to find x the amount od 60% mixture uzed to create the 65% mixture

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)

answer: what equations are there

step-by-step explanation:

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.

18.75 gallons

step-by-step explanation: