Question

A tortoise makes a journey in two parts: it can either walk at 4cm/s or crawl at 3cm/s. If the tortoise walks the first part and crawls the second, it takes 110 seconds. If it crawls the first part and walks the second, it takes 100 seconds.Find the lengths of the two parts of the journey.

Answer 1

time = distance/speed

Let a be the first half and b be the second half. Then:
a/4 + b/3 = 110
a/3 + b/4 = 100

Find a and b

Answer 2

Can you finish the rest?

Answer 3

HELLLOOOO? Are you there?

Answer 4

yeah

Answer 5

i m trying to solve it

Answer 6

ok

Answer 7

but i got stuck in fractions

Answer 8

a/4 + b/3=110
a + 4b/3 = 440
a = 440 - 4b/3

Answer 9

(440 - 4b/3 )/3+b/4 = 100
4(440-4b/3) + 3b = 1200
1760 - 16b/3 + 3b = 1200
5280 - 16b + 9b = 3600
-7b = -1680
b = 240

Answer 10

a = 440 - 4b/3 = 440 - 4*240/3 = 440 - 4*80 = 440 - 320 = 120

Answer 11

thnx for helping me