help !!!!!
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help !!!!!
Hi
Can someone please help me for this question. Please explain how....
The fish has a head 9cm long. The tail is equal to the size of the head plus one-half the size of the body. The body is the size of the head plus the tail. How long is the fish.
(a) 27cm
(b) 54cm
(c) 63cm
(d) 72cm
(e) 81cm
Thanks for your help.
Rds
Uma
Can someone please help me for this question. Please explain how....
The fish has a head 9cm long. The tail is equal to the size of the head plus one-half the size of the body. The body is the size of the head plus the tail. How long is the fish.
(a) 27cm
(b) 54cm
(c) 63cm
(d) 72cm
(e) 81cm
Thanks for your help.
Rds
Uma
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- Posts: 1245
- Joined: Fri Jul 06, 2007 9:31 pm
(d) is the only one that works.
Or use algebra,,,
But I don't believe you because that's a big fish... did it get away?
Regards
SVE
Or use algebra,,,
Code: Select all
h=9
t = h + b/2 EQ-1
b = h + t EQ-2
substitute for b in EQ-1
t = h + h/2 + t/2
t/2 = 3h/2
t = 3h
Use 9cm... gives t=27
b = h + t
gives
b = 36
Fish = h+b+t
= 9 + 36 + 27
= 72 cm.
Regards
SVE
Animis opibusque parati
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- Posts: 1245
- Joined: Fri Jul 06, 2007 9:31 pm