I got 0.45 but the answer on the mid term that was given was .045 ... I think I am right. If someone knows why I wouldn't be Please let me know.
2007-06-14 17:30:22 · 10 answers · asked by Christina 2 in Science & Mathematics ➔ Mathematics
You are right. (Politely) Tell your teacher/professor to check his/her decimal placement.
2007-06-14 17:33:42 · answer #1 · answered by JEBalke 2 · 1⤊ 0⤋
You are correct on this one. Anytime you have a fraction, like 9/20, you are dividing the numerator by the denominator. In this case, it would be 9 divided by 20, which is .45. Look at it this way, 9/20 is very close to 10/20 or 1/2. Therefore, its decimal value is going to be very close to .5.
2007-06-15 00:35:12 · answer #2 · answered by Naomi 3 · 0⤊ 0⤋
9/20, the 20 make it to 100
so it is times 5
when 20 times 5 (=100)
9 also need to times 5 (=45)
9/20 = 45/100
45 = 45.00 when devided by 100 -> 0.45
2007-06-15 00:45:11 · answer #3 · answered by cOPYcAT 5 · 0⤊ 0⤋
0.45 is correct
.045= 9/200
2007-06-15 01:12:55 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
How about getting out your calculator and figuring it out. Yes, 0.45 is right. Then go complain to the teacher.
2007-06-15 00:39:14 · answer #5 · answered by Anonymous · 0⤊ 0⤋
When you know that you are right (and your teacher insist 'a wrong answer' is correct) you can explain it logically (and politely) like...
(Madam / Sir!) I first I did 9/2 and answer is 4.5
Then shifted a decimal place because 20 is having a zero in it . So it became 0.45
If teacher has sense, he/she will understand meaning of it!
Even after your explaining, some teachers would not like to admit mistakes in front of you! They might try to hurt you...
However, explaining matters logically is a need !
Please do that!
Regards!
2007-06-15 00:57:01 · answer #6 · answered by kkr 3 · 0⤊ 0⤋
right!
9/20 = 9/(2)(10) = 4.5/10 = 0.45
2007-06-15 00:34:55 · answer #7 · answered by PaeKm 3 · 0⤊ 0⤋
0.45 is right. Tell your teacher hes wrong and I said so.
2007-06-15 00:33:33 · answer #8 · answered by TadaceAce 3 · 0⤊ 0⤋
.45 is correct.
2007-06-15 00:37:45 · answer #9 · answered by dios_et_dios 2 · 0⤊ 0⤋
0.45 =)
2007-06-15 00:36:39 · answer #10 · answered by Anonymous · 0⤊ 0⤋