Please help, thank you.
Also what is 28 + 3 (24/8) - (4 x 7) + 2 to the forth power
2007-09-26 11:48:08 · 28 answers · asked by jeffhardygirl24_7 3 in Science & Mathematics ➔ Mathematics
$9.60.
I don't know the other one. Sorry, I am terrible at math.
2007-09-26 11:50:34 · answer #1 · answered by Missy 5 · 1⤊ 1⤋
20% of $48 = $9.60
so 20% off of $48 gives $48 - $9.6 = $38.40
28 + 3 (24/8) - (4 x 7) + 2 = 28 + 3.3 - 28 + 2 = 9 + 2 = 11
11 to the fourth power is 14,641
whilst 28 + 3 (24/8) - (4 x 7) + 2^4 = 28 + 9 - 28 + 16 = 25
2007-09-26 11:56:54 · answer #2 · answered by Beardo 7 · 1⤊ 0⤋
20% = 1/5
48/5 = 9 3/5 or 9.6
20% OF $48.00 = $9.60
But 20% OFF of $48.00 = $38.40
2 to the 4th power is 2x2x2x2= 16
28 + 3(24/8) - (4 x 7) + 16
28 + 3(3) - 28 + 16
9 + 16
25
or
5 to the power 2
2007-09-26 11:55:29 · answer #3 · answered by David F 5 · 1⤊ 0⤋
i`ll help you with the percent question since no one seemed to know the easiest and most direct solution. The easiest way to solve a discount problem is by using the following concept: If your asked to find a% off of a price "x" just compute 100%-a% then multiply that by "x". In short notation discount price = (100%-a%)*x. Easy. To illustrate this formula i`ll show you how to solve your problem. In this case you would do the following operation: 100% - 20% = 80%. Now to use that 80% you need to move the decimal two places to the left which gives "0.8". Finally you would multiply 0.8*48 which equals $38.4, the discount price.
2007-09-27 19:41:14 · answer #4 · answered by pedro g 2 · 0⤊ 0⤋
11
2007-09-26 11:50:44 · answer #5 · answered by jd 1 · 0⤊ 2⤋
48/100 =0.48
therefor 0.48=1%
20%=1%*20=0.48*20=9.6
28 + 3*(28/4) - (4 x 7) + 2^4
28/4=7
7*3=21
4*7=28
2^4=2*2*2*2=4*4=16
so:
28+21-28+16=21+16=37
2007-09-26 11:53:47 · answer #6 · answered by Anonymous · 0⤊ 2⤋
Just multiply 20 by 48. That amount is the amount off of $48. I don't know algebra well so I can't help with the other question.
2007-09-26 12:22:39 · answer #7 · answered by Anonymous · 0⤊ 1⤋
simple... Get a calculator. Divide 48.00 by 100. Multiply by 20, subtract that from 48.
2007-09-26 11:50:04 · answer #8 · answered by Anonymous · 0⤊ 0⤋
20% off of $48 is $38.40
And the second answer is 25. Is this for homework? What grade are you in?!
2007-09-26 11:54:49 · answer #9 · answered by Anonymous · 1⤊ 0⤋
9.6
81
28+3 x 3 - 28+2 to the 4th power
33 - 30 to the 4th power
3 x 3 x 3 x3 = 81
2007-09-26 11:51:23 · answer #10 · answered by John 3 · 0⤊ 2⤋
percent- move the decimal 2 places 2 the right, so 2% would be .02, 20% would be .2 and 100% would be 1.0
ok, now you want to find 20%/$48, imagine that in fraction form, so now you have to multiply .2 by 48
48x .2= you answer
and the second one is easy, please do simple order of operations
2007-09-26 11:52:06 · answer #11 · answered by Anonymous · 0⤊ 1⤋