Tutors Answer Your Questions about Reduction-of-unit-multipliers (FREE)
Question 158650: In school we are doing double unit conversions and i dont understand how to do them. For example, 72 miles/hour=_________meters/seconds. I tried doing
72mi 5280ft
--- ------- = 380160ft.
1 x 1 mi
i converted that to meters by multiplying it by .3048(i have a conversion sheet) and got 321868.8. To me that doesn't seem right because that seems like too big of a number to be meters per second. Please help me asap!
~Lauryn
Click here to see answer by nerdybill(7384)   |
Question 164517: I have been having trouble with unit multipliers, and my algebra teacher isn't very good at explaining them. I have missed them on every test. I had a test today, and it was wrong.
Here is the problem:
Convert 710m. to inches. (Go from m to cm to in)
On the test I tried something like:
(the dashes represent spaces in between fractions)
-----1000cm.----1m.-----71000cm.----1in.---------71000(2.54)in
710•_____x______=_________x_________=________________
-----1m.--1000cm.----1------2.54cm.----------1
i would just simply like to know:
(in words) how to do a unit multiplier
and how to do the test question above.
thank you.
Click here to see answer by josmiceli(19441)  |
Question 164517: I have been having trouble with unit multipliers, and my algebra teacher isn't very good at explaining them. I have missed them on every test. I had a test today, and it was wrong.
Here is the problem:
Convert 710m. to inches. (Go from m to cm to in)
On the test I tried something like:
(the dashes represent spaces in between fractions)
-----1000cm.----1m.-----71000cm.----1in.---------71000(2.54)in
710•_____x______=_________x_________=________________
-----1m.--1000cm.----1------2.54cm.----------1
i would just simply like to know:
(in words) how to do a unit multiplier
and how to do the test question above.
thank you.
Click here to see answer by Edwin McCravy(20055)  |
Question 165619: Tony was arranging the CDs for the White Elephant Sale. So far he had five different groups. He had put 1/8 of the CDs in the jazz section, 1/4 into the rap section, 3/8 in the rock section, and 3/16 in the pop section. He put 3 CDs in the classical section. How many Cds did Tony arrange?
Click here to see answer by josmiceli(19441) |
Question 165619: Tony was arranging the CDs for the White Elephant Sale. So far he had five different groups. He had put 1/8 of the CDs in the jazz section, 1/4 into the rap section, 3/8 in the rock section, and 3/16 in the pop section. He put 3 CDs in the classical section. How many Cds did Tony arrange?
Click here to see answer by edjones(8007)  |
Question 167301: I hope you can help me. I just went back to school and I am having so much trouble with the math (I had to start college in the "stupid math" class, and I'm STILL having trouble!). Unfortunately my math professor is not very good at explaining things. He's very nice, but he's very old, and when he's putting a problem on the board, he sometimes gets confused and gets the wrong answer, which then confuses me even more! I need to know about unit multipliers. How do you know which measurement goes where (top or bottom of fraction)? I had a homework question (which I got wrong; I know the answer, but I still cannot find out how to get that answer.
Convert 44 feet per second to miles per hour.
The answer is 38 mph, but I have absolutely no idea how they came up with that answer. I've been working on this problem for over an hour. Thank you so much for your help.
DT
Click here to see answer by gonzo(654) |
Question 167301: I hope you can help me. I just went back to school and I am having so much trouble with the math (I had to start college in the "stupid math" class, and I'm STILL having trouble!). Unfortunately my math professor is not very good at explaining things. He's very nice, but he's very old, and when he's putting a problem on the board, he sometimes gets confused and gets the wrong answer, which then confuses me even more! I need to know about unit multipliers. How do you know which measurement goes where (top or bottom of fraction)? I had a homework question (which I got wrong; I know the answer, but I still cannot find out how to get that answer.
Convert 44 feet per second to miles per hour.
The answer is 38 mph, but I have absolutely no idea how they came up with that answer. I've been working on this problem for over an hour. Thank you so much for your help.
DT
Click here to see answer by scott8148(6628)  |
Question 167301: I hope you can help me. I just went back to school and I am having so much trouble with the math (I had to start college in the "stupid math" class, and I'm STILL having trouble!). Unfortunately my math professor is not very good at explaining things. He's very nice, but he's very old, and when he's putting a problem on the board, he sometimes gets confused and gets the wrong answer, which then confuses me even more! I need to know about unit multipliers. How do you know which measurement goes where (top or bottom of fraction)? I had a homework question (which I got wrong; I know the answer, but I still cannot find out how to get that answer.
Convert 44 feet per second to miles per hour.
The answer is 38 mph, but I have absolutely no idea how they came up with that answer. I've been working on this problem for over an hour. Thank you so much for your help.
DT
Click here to see answer by ptaylor(2198)  |
Question 168706: mr winkle jogs 4 miles and then turns and jogs back to his starting point.the first part of his jog he was going mostly uphill so his speed was 2 miles per hr slower than his speed returning.if the total time he spent was 1 2/3 hour find his rate going and his rate returning
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 175592: In an exponential expression such as A=be-(t/RC) we cannot attach units to the exponent -(t/RC) because a base, such as e, can only be raised by a pure number. Consequently, if the variable t in this equation is measured in seconds, what does this imply about the units on the product RC?
Click here to see answer by stanbon(75887) |
Question 176325: use Chebyshevs theorem for disturbution with a mean of 80 and sd at 10. the question is what percentage of values will fall bwtn 65 and 95 %.
this is my answer.
80 +3(10)=80 + 30 =110 80 - 3(10)= 80 - 50 = 30 I said the percentage was 88.89%. I am lost in regards to this problem. Could you show me step by step what to do.
Click here to see answer by MathTherapy(10552)  |
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