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Question 886566: A train travels at a certain average speed for a distance of 63 km. Thereafter it travels a distance of 72 km with an average speed of 6 km/hr more than the original speed. Total time taken to complete the journey is 3 hours. What is the original average speed of the train ?
Click here to see answer by josgarithmetic(39617)  |
Question 893476: on my summer math asigniment im stuk on this i dont get how to awnser it i clicked explain and still dont get it heres the problem
Evaluate the following expression.
[27 + 2 times (19-15)] divided by 5
plesee awnser some one
Click here to see answer by rfer(16322) |
Question 898077: 1. Under what conditions will the expression a+b be negative?
2. Under what conditions will the expression a√b be negative?
3. Under what conditions will the expression a÷b be positive?
4. Under what conditions will the expression ab3 be negative?
Click here to see answer by Fombitz(32388)  |
Question 898384: -8-4squared/2cubed-2
In the first part -8-4 squared, (I do not know how to put the little 2 next to the 4.) The / is the dividing sign, so therefore it is actually written as a fraction in my book. the divisor, the second part, is 2 Cubed - 2. (Again, I do not know how to write the little 3 next to the 2.) This is what I tried.
For the dividend: -8-4squared, I got: -8-16= -8+(-16)= -24
for the divisor: 2cubed-2, I got:8-2= 8+(-2)=6 therefore my new fraction is -24/6 which equals -4
thank you for your help
Click here to see answer by stanbon(75887) |
Question 898384: -8-4squared/2cubed-2
In the first part -8-4 squared, (I do not know how to put the little 2 next to the 4.) The / is the dividing sign, so therefore it is actually written as a fraction in my book. the divisor, the second part, is 2 Cubed - 2. (Again, I do not know how to write the little 3 next to the 2.) This is what I tried.
For the dividend: -8-4squared, I got: -8-16= -8+(-16)= -24
for the divisor: 2cubed-2, I got:8-2= 8+(-2)=6 therefore my new fraction is -24/6 which equals -4
thank you for your help
Click here to see answer by richwmiller(17219)  |
Question 898384: -8-4squared/2cubed-2
In the first part -8-4 squared, (I do not know how to put the little 2 next to the 4.) The / is the dividing sign, so therefore it is actually written as a fraction in my book. the divisor, the second part, is 2 Cubed - 2. (Again, I do not know how to write the little 3 next to the 2.) This is what I tried.
For the dividend: -8-4squared, I got: -8-16= -8+(-16)= -24
for the divisor: 2cubed-2, I got:8-2= 8+(-2)=6 therefore my new fraction is -24/6 which equals -4
thank you for your help
Click here to see answer by MathTherapy(10552)  |
Question 904506: Hello,
a while back, I had submitted this problem:
simplify (5^2 3^2 7^1)^2
_______________
5^4
It was answered, but does not match any of the choices below:
a) 63 b) 3,969 c) 3,556,224 d) 4,064,256
_________ _________
625 625
Click here to see answer by Kodimalar(1) |
Question 917321: I am a beginner with algebra, never had it before. I need to learn from the beginning. I'm new to this site and received this web from my advisor. Please inform me on how to get started as far as asking questions in the correct place if this is not the right place and an email on an available tutor who would be able to help me. Thank you.
Click here to see answer by Theo(13342)  |
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