2006-07-12 13:52:00 · 13 answers · asked by young money 1 in Science & Mathematics ➔ Mathematics
28
"What" is your variable/unknown. "Is" means equals. 70% is the same as .7. "Of" means multiply. So your sentence translates into the mathematical equation,
x = .7 x 40
x = 28
2006-07-12 13:55:58 · answer #1 · answered by tdw 4 · 0⤊ 0⤋
28
It is the same as 40% of 70.
Take 10% of 40, or in otherwords 40/10. This is 4. Now you have 10%, to get 70% multiply the number that is = to 10% (4) by 7. 7x4 = 28.
Also, 40% is = 2/5. Divide 70 by 5, and multiply by 2. 70/5 = 14. 14x2 = 28
Remember the trick of breaking it down into 10% and then multiplying up. It helps these problems come faster, as dividing by 10 is easy, you just move the decimal place one spot to the left (or in the case of numbers ending in 0 you can just drop one 0)
If you work better with fractions, the alternative way will help you as well.
Tiger Striped Dog MD
2006-07-12 14:22:11 · answer #2 · answered by tigerstripeddogmd 2 · 0⤊ 0⤋
28
2006-07-12 13:58:57 · answer #3 · answered by ergech 2 · 0⤊ 0⤋
28
2006-07-12 13:57:51 · answer #4 · answered by . 5 · 0⤊ 0⤋
28
2006-07-12 13:55:38 · answer #5 · answered by judyjefflee 1 · 0⤊ 0⤋
28
2006-07-12 13:55:19 · answer #6 · answered by ME 5 · 0⤊ 0⤋
for any percentage just multiply the number by the percent converted to a decimal. for example 70% of 40 is 40X0.70.
2006-07-12 16:34:58 · answer #7 · answered by amanda70024 1 · 0⤊ 0⤋
find % by
40*70/100=28
2006-07-12 17:12:15 · answer #8 · answered by corrona 3 · 0⤊ 0⤋
You mean you actually took time to type that question out? You have too much time. For your information, most computers do have a calculator in the Start menu. 28.
2006-07-12 13:56:30 · answer #9 · answered by James 2 · 0⤊ 0⤋
28!
2006-07-12 16:17:57 · answer #10 · answered by ckaychick 1 · 0⤊ 0⤋