solve these algebraic proportions! SHOW WORK.?
3/x=x+1/4
SHOW WORK.
x+3/x+5=x-3/-5
show work.
t-2/t=2/t+3
SHOW WORKKKK.
2x-3/4x=x-1/x
3/x=x+1/4
SHOW WORK.
x+3/x+5=x-3/-5
show work.
t-2/t=2/t+3
SHOW WORKKKK.
2x-3/4x=x-1/x
hayharbr
Cross multiply them. Like on the first, 3•4 = x • (x + 1)
12 = x^2 + x
0 = x^2 + x - 12
0 = (x + 4)(x - 3)
so x = -4 or x = 3
Be sure to check the answers to be sure they work in the original, and don't cause a denominator to equal zero (if that happens, disregard that answer).
weldin
permit C = style of pounds of cashews and P = style of pounds of peanuts C + P = 32 5C + a million.5P = 4(32) (that's the finished fee of the 32 pounds) so multiply the 1st equation with the help of 5: 5C + 5P = one hundred sixty 5C +a million.5P = 128 subtract: 3.5P = 40 8 P = 40 8/3.5 = thirteen 5/7 lbs C = 32 - thirteen 5/7 = 18 2/7 lbs