Question

Tom travels from a to b and at a speed of 90km per hour. It takes him time ‘t’. Alice travels from a to b at a speed of 70km per hour. It takes her time ‘t+ 1 hour


How long did it take for Tom to complete his journey?’

Answer 1

@camerondoherty @Callisto @phi @Abhisar

Answer 2

im looking

Answer 3

what are you asking for???the time

Answer 4

@ryanvarghese12790

Answer 5

you start by knowing
rate* time = distance

next, what do you know about the distance of Tom's trip as compared to Alice's trip ?

Answer 6

is:
\[90t=70(t+1)\]
\[20t=70\]
Therefore,
\[t = \frac{ 70 }{ 20 }\]
\[= 3.5 hours\]

Answer 7

yes

Answer 8

cheers for the help ... will give you a medal and fan you....

Answer 9

If there is any fun in math, it's figuring out the problem

Answer 10

ok....lol

Answer 11

yes its 3.5 hours

Answer 12

lol...you are bit late... ☺

Answer 13

oh sry

Answer 14

no problem ♠

Answer 15

=]

Answer 16

♦ ♠ ☺ ↨ ♣ ƒ Ú õ ° ï Ä ı ├Õ

Answer 17

@camerondoherty how do u get soooo many fans?

Answer 18

I've been on Open Study a while
I've made friends, and helped many people.
That's how c:

Answer 19

nice.....