2007-02-01 16:14:08 · 6 answers · asked by pinky022693 2 in Education & Reference ➔ Homework Help
the answer is 24 1/4 but i need the work to get credit! i got the answers in the back of the book but i need to show work.
2007-02-01 16:41:04 · update #1
You multiply each side by the LCD (lowest common denomintator). So the expample's LCD would be 4. Then multiply each side by the LCD. and the fraction is gone.
2007-02-01 16:23:44 · answer #1 · answered by Abhi 1 · 0⤊ 0⤋
Try to clear away the fractions by multiplying both sides of the equation by the least common multiple. In this problem you have halves and fourths. Multiply each side by four.
4(3/4n - 1/2) = 4(7/4)
3n - 2 = 7
3n = 9
n = 3
2007-02-01 16:20:17 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
n=1 and 1/2
2007-02-01 16:18:25 · answer #3 · answered by poker s 1 · 0⤊ 1⤋
n=3
3/4n= 7/4+2/4
3/4n= 9/4
n= 9/4 * 4/3 (The 4s cancel and 9/3 is 3)
n=3
2007-02-01 16:16:20 · answer #4 · answered by sweetnshort 2 · 0⤊ 0⤋
n*(3/4n-1/2=7/4)
4*(3/4 - n/2 = 7n/2)
3 - 2n = 7n
5n = 3
n = 3/5, not the answer you're looking for
maybe rewrite it as 3/(4n - 1/2) = 7/4 ?
3*4 = 7(4n - 1/2)
12 = 28n - 7/2.... this won't get to the answer you're looking for either, please rewrite the question, enclose them in parenthesis to make them clearer.
2007-02-01 19:01:56 · answer #5 · answered by Odin M 3 · 0⤊ 0⤋
Multiply the whole equation by 8 so it turns into 6n-4=14 in which n=3
2007-02-01 16:17:58 · answer #6 · answered by bluefairy421 4 · 0⤊ 0⤋