please show formula
2007-04-28 08:14:55 · 9 answers · asked by Anonymous in Education & Reference ➔ Homework Help
thanks you guys now how do i find the whole when all i have is the percent example: 40% of what number is 160 show formula
2007-04-28 08:43:12 · update #1
9 is what part of 180?
9/180=.05 or 5%
40% of what number is 160?
step 1: 160 = .40[or 40%] multiplied by x
step 2: 160/.40= x
step 3: x = 400
40% of 400 is 160
hope it helps.
2007-04-28 13:42:25 · answer #1 · answered by cookiemonster75 2 · 0⤊ 0⤋
Use the percent proportion....IS/OF = %/100. Then you plug in the numbers...9/180 =p/100. Cross multiply and you get 180p = 900. Divide by 180 and you get 5%. If you want it as a fraction 5% = 1/20. Now 40% of what number is 160...use the proportion.....160/n = 40/100. Cross multiply ...40n = 16000. Divide by 40 and you get n = 400. So 40% of 400 is 160. Works all the time.
2007-04-28 20:39:13 · answer #2 · answered by dpirsq2 5 · 0⤊ 0⤋
It's a matter of reduction. If you put 9 over 180 (in fraction form), then you can do the following:
(9/180) / 9 = 1/20
Therefore, 9 is 1/20 (or 5%) of 180.
2007-04-28 15:20:27 · answer #3 · answered by Cheryl 2 · 0⤊ 0⤋
You just divide 9 by 180 to get your answer.
9/180 = .05 = 5% = 1/20
2007-04-28 22:50:28 · answer #4 · answered by salomi2009 2 · 0⤊ 0⤋
9= p x 180 then divide by 180 on each side and you get 1/20. remember in math the word is means an equal sign and of means multiplication. <3
2007-04-28 15:20:28 · answer #5 · answered by Kaytay 1 · 0⤊ 0⤋
9 x 20 = 180 so 9 is one twentieth of 180 or 5%.
2007-04-28 15:18:31 · answer #6 · answered by Anonymous · 0⤊ 0⤋
9/180=x/100
180x=900
180x/180=900/180
x=5
9 is 5% of 180
2007-04-28 15:31:27 · answer #7 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
20 or 1/5
2007-04-28 15:22:05 · answer #8 · answered by ruth4526 7 · 0⤊ 1⤋
9/180=.05 or 5%
2007-04-28 15:19:17 · answer #9 · answered by skipper 4 · 0⤊ 0⤋