Ok, I don't understand how to set up the problems. Once I have them set up, I know how to solve it.
1.128 is what percent of 640?
2.3.4 is what percent of 5?
3.15 is what percent of 120?
2007-11-07 14:21:20 · 5 answers · asked by Lime Green Queen 2 in Education & Reference ➔ Homework Help
ooh I love these thingies! lol nerd time.
okay.
1. 128/640 is what? so 128/640=what/100?
2. 3.4/5=what/100?
you should know how to do 3 now.
2007-11-07 14:31:00 · answer #1 · answered by Anonymous · 1⤊ 0⤋
is/of = percent/100
part/total = percent/100
cross multiply then divide
1. 128/640 = n/100
128 x 100 = 640n
12800=640n
12800/640 = n
20 = n
2007-11-07 14:31:21 · answer #2 · answered by thumpercml 2 · 0⤊ 0⤋
Following the pattern of your questions.
x is what percentage of y?
Use the formula x/y X 100
To give you an example 16 is what percentage of 128
16/128 X100 = percentage
1/8 X 100 = 12.5%
Do all your homework. This should help.
2007-11-07 14:36:13 · answer #3 · answered by jemhasb 7 · 0⤊ 0⤋
128=640x
3.4=5x
15=120x
solve for x and multiply by 100 to get the percent...notice the set up
got it?
2007-11-07 14:27:05 · answer #4 · answered by WhiteTeethRock 2 · 1⤊ 0⤋
confident it potential what's 7p.c.of 40 9:) i might supply you the respond yet you look such as you already know what you're doing. haha i think of you're interior the comparable grade i'm. i'm in eighth grade btw.
2016-10-01 23:38:29 · answer #5 · answered by ? 4 · 0⤊ 0⤋