I Can't Believe I Could Not Solve This, Who Can Help With This Math? - Education

Welcome, Guest: Register On Nairaland / LOGIN! / Trending / Recent / New
Stats: 3,156,798 members, 7,831,583 topics. Date: Friday, 17 May 2024 at 09:37 PM

I Can't Believe I Could Not Solve This, Who Can Help With This Math? - Education - Nairaland

Nairaland Forum / Nairaland / General / Education / I Can't Believe I Could Not Solve This, Who Can Help With This Math? (1107 Views)

Can You Solve This Math Question? / Help, I'm Afraid I Could Be Expelled From School After 3 Years / Many Are Married But Only A Few Can Understand This Math Is A Language(mr Shape) (2) (3) (4)

(1) (Reply) (Go Down)

I Can't Believe I Could Not Solve This, Who Can Help With This Math? by turmacs(f): 8:53pm On Apr 18

Who can help with this please? embarassed

1 Share

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by MaziX(m): 8:58pm On Apr 18

She branch her bf house ni.. hold her well to say the truth

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by turmacs(f): 9:21pm On Apr 18

help

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Uniquekriss(m): 11:13pm On Apr 18

Your answer is 55miles per hour, u can chat me on 0704 three 537 five95 for the workings.

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Teeneyo(m): 11:18pm On Apr 18

Total distance =165 miles
Avg speed = Total distance/Total time
Let avg speed for ist part be x
Let total time for ist part by y
X = 165/y (ist part)…………..(1)
(x-22) = 165/(y+2) (2nd part)………….(2)
Now small magic
Xy = 165 from eqn 1
(x-22)(y+2) = 165 from eqn 2
Xy + 2x – 22y – 44 =165
165 + 2x – 22y – 44 = 165
165 cancel 165
2x – 22y – 44 = 0
2(165/y) – 22y – 44 = 0
330/y – 22y – 44 = 0
Multiply through by y
-22y2 – 44y + 330 = 0
Using almighty formula
Y becomes either -5 or 3
Since time cant be negative
Y = 3 hours
So x = 165/3 = 55 miles per hour

10 Likes 1 Share

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Danja: 4:15am On Apr 19

Teeneyo:
Total distance =165 miles
Avg speed = Total distance/Total time
Let avg speed for ist part be x
Let total time for ist part by y
X = 165/y (ist part)…………..(1)
(x-22) = 165/(y+2) (2nd part)………….(2)
Now small magic
Xy = 165 from eqn 1
(x-22)(y+2) = 165 from eqn 2
Xy + 2x – 22y – 44 =165
165 + 2x – 22y – 44 = 165
165 cancel 165
2x – 22y – 44 = 0
2(165/y) – 22y – 44 = 0
330/y – 22y – 44 = 0
Multiply through by y
-22y2 – 44y + 330 = 0
Using almighty formula
Y becomes either -5 or 3
Since time cant be negative
Y = 3 hours
So x = 165/3 = 55 miles per hour

This is correct

However, the answers you got were for the 1st trip.

The time for the return trip is therefore 3hrs + 2hrs = 5hrs

Average speed for the return trip is therefore 55MPH - 22MPH = 33MPH

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Teeneyo(m): 4:37am On Apr 19

[quote author=Danja post=129515476][/quote]
I expected d op to finish up....e no easy to type

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by turmacs(f): 8:03am On Apr 19

Teeneyo:
Total distance =165 miles
Avg speed = Total distance/Total time
Let avg speed for ist part be x
Let total time for ist part by y
X = 165/y (ist part)…………..(1)
(x-22) = 165/(y+2) (2nd part)………….(2)
Now small magic
Xy = 165 from eqn 1
(x-22)(y+2) = 165 from eqn 2
Xy + 2x – 22y – 44 =165
165 + 2x – 22y – 44 = 165
165 cancel 165
2x – 22y – 44 = 0
2(165/y) – 22y – 44 = 0
330/y – 22y – 44 = 0
Multiply through by y
-22y2 – 44y + 330 = 0
Using almighty formula
Y becomes either -5 or 3
Since time cant be negative
Y = 3 hours
So x = 165/3 = 55 miles per hour

Correct. Nice one

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Light78: 12:31pm On Apr 19

turmacs:
Who can help with this please?

Solved

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Olachase(m): 12:35pm On Apr 19

i don hear the side story from Megan, omo the story touch me embarassed

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by turmacs(f): 2:35pm On Apr 19

Light78:

Solved

This is completely wrong bro. all these ChatGpt people sef 😒

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by MindHacker9009(m): 1:54pm On Apr 21

Correct answer with step by step workings from ChatGPT3.5

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by MindHacker9009(m): 1:55pm On Apr 21

Continuation

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by nedekid: 2:49pm On May 01

Teeneyo:
Total distance =165 miles
Avg speed = Total distance/Total time
Let avg speed for ist part be x
Let total time for ist part by y
X = 165/y (ist part)…………..(1)
(x-22) = 165/(y+2) (2nd part)………….(2)
Now small magic
Xy = 165 from eqn 1
(x-22)(y+2) = 165 from eqn 2
Xy + 2x – 22y – 44 =165
165 + 2x – 22y – 44 = 165
165 cancel 165
2x – 22y – 44 = 0
2(165/y) – 22y – 44 = 0
330/y – 22y – 44 = 0
Multiply through by y
-22y2 – 44y + 330 = 0
Using almighty formula
Y becomes either -5 or 3
Since time cant be negative
Y = 3 hours
So x = 165/3 = 55 miles per hour

Me I don't know, but from the way you constructed this your calculation, how nice and organised it looks, I will say you are 100% correct. cool

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Teeneyo(m): 3:34pm On May 01

nedekid:

Me I don't know, but from the way you constructed this your calculation, how nice and organised it looks, I will say you are 100% correct.

Na my work
Tutor to d core

1 Like

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by Johnwrite(m): 4:49pm On May 01

Lol

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by yemre: 1:23am On May 15

Hi Op, I disagree with all the workings above. Both the one by Teeneyo and the one placed on ChatGPT. This is because your question is not a complete question.

You said he traveled 165miles, at what speed (we don't know). When he was coming back, he reduced the speed by 22miles per hour, and the return journey then took 2 hours.

Chatgpt may be 75% wrong on complex maths, especially when it involves issues represented by linear equations.

I am saying this from experience!

Don't be deceived.

Get the complete question and finding your way to the answer would be a glide thru.

Peace🤞

Re: I Can't Believe I Could Not Solve This, Who Can Help With This Math? by MindHacker9009(m): 4:19pm On May 16

yemre:
Hi Op, I disagree with all the workings above. Both the one by Teeneyo and the one placed on ChatGPT. This is because your question is not a complete question.

You said he traveled 165miles, at what speed (we don't know). When he was coming back, he reduced the speed by 22miles per hour, and the return journey then took 2 hours.

Chatgpt may be 75% wrong on complex maths, especially when it involves issues represented by linear equations.

I am saying this from experience!

Don't be deceived.

Get the complete question and finding your way to the answer would be a glide thru.

Peace🤞

Teeneyo and the one by ChatGPT are 100% right. You are the one that does not understand the question.

(1) (Reply)

Project Topic / Musings Of A Mad Man 4 / Studying At The National Open University Of Nigeria?

(Go Up)

Sections: politics (1) business autos (1) jobs (1) career education (1) romance computers phones travel sports fashion health
religion celebs tv-movies music-radio literature webmasters programming techmarket

Links: (1) (2) (3) (4) (5) (6) (7) (8) (9) (10)

Nairaland - Copyright © 2005 - 2024 Oluwaseun Osewa. All rights reserved. See How To Advertise. 25
Disclaimer: Every Nairaland member is solely responsible for anything that he/she posts or uploads on Nairaland.