Joined: 04 Aug 2004 Posts: 1739 Location: Houston, Texas
Math Posted: 10-31-04 17:18pm
My sister is having trouble with her
math.. And i'm trying to figure out how
to help her. But I cant figure out how
to solve these problems. Help anyone?
1. What number increased by 30% equals
260?
2. What number decreased by 33 and 1/3%
is 30?
3. Sixteen is 25% more then what
number?
4. Forty is 40% less then what number?
5. What is 50% more than 50?
6. What is 66 and 2/3% less then 45?
These are so dumb...
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2ferano
Extremely EHEALTHy
Joined: 23 Dec 2003 Posts: 3717
Posted: 10-31-04 17:25pm
Omg, I am an fool. I tried to figure out
how to solve them and cannot. I haven't
had a math class in seven almost eight
years.
But I think #5 is 75. Because 50% of 50
is 25, so 25 + 50 is 75. But that is all
I know!
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Michelle1337
Extremely EHEALTHy
Joined: 04 Aug 2004 Posts: 1739 Location: Houston, Texas
Posted: 10-31-04 17:32pm
I know how you feel! I feel so dumb
because this is 8th grade math! And I
cant figure it out!!
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mommaashley
Experienced User , Rather EHEALTHy
Joined: 26 Oct 2004 Posts: 420 Location: Canada
Posted: 10-31-04 18:35pm
#1 I think is 200
200*.30=60
200+60=260
the .30
is the 30%
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linuxChique
Extremely EHEALTHy
Joined: 05 May 2004 Posts: 4535
Re: Math Posted: 10-31-04 20:33pm
1. What number increased by 30% equals
260?
Ok. 260 equals 100% (our original number)
plus 30% which is 130%. So set up an
equation:
260/x = 130/100
x=200
2. What number decreased by 33 and 1/3%
is 30?
30 = 100% minus 33 1/3 % which is 66.7%.
This time the 100 is on the bottom,
because the number we're looking for is
bigger than 30. Sooooooo
30/x = 66.6666667/100
x=45
etc.
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mommaashley
Experienced User , Rather EHEALTHy
Joined: 26 Oct 2004 Posts: 420 Location: Canada
Posted: 10-31-04 20:34pm
Wow I got those two but I did them the
hard way lol
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Michelle1337
Extremely EHEALTHy
Joined: 04 Aug 2004 Posts: 1739 Location: Houston, Texas
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