Brass is made from a mixture of copper and other elements. A mixture 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 of 60% mixture used to create the 65% mixture? 0.8(100 – x) + 0.6x = 100(0.65) 0.6(100 – x) + 0.8x = 100(0.65) 0.8(100) + 0.6x = 0.65(100 - x) 0.6(x) + 0.8(100 + x) = 0.65

all but the second one

step-by-step explanation:

cuz that one goes over 180

mark brainliest

-6 is the correct option from the above given options

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet

answer: (3,11) is your answer.