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Can you show me how to do them and what the answer is
1.A pensioner remembered that he was sent to school when he was 4 1/2 years of age, and he stayed at the same school for 1/6 of his life. Then he remained in the army for 1/5 of his life as a clerk, and when he left the army he spent 1/4 of his life as a clerk. At present he had already spent 1/3 of his in retirement. What is the pensioner's age?
2.
Determine all the values of x and y such that xy, x/y, and x-y are all equal.

2007-02-15 10:35:12 · 6 answers · asked by Anonymous in Education & Reference Homework Help

6 answers

#1 is 45 ... i think

#2 is possible

x = -1/2 and y = -1

2007-02-15 11:49:26 · answer #1 · answered by Anonymous · 0 0

(1/6 + 1/5 + 1/4 + 1/3 ) *x + 9/2 = x
=> x ( 1- (1/6 + 1/5 + 1/4 + 1/3 ) ) = 9/2
=> x * 0.05 = 9/2
=> x = 90

Q2. xy=x/y => y^2=1
x-y = xy =>x(y-1)=y => x = y/(y-1)

x = infinity, y , arbitrary

2007-02-15 18:54:53 · answer #2 · answered by dllr 1 · 0 0

his current age should be 38 4/7

if u set his current age as x, and solve it algebraically

2007-02-15 18:47:38 · answer #3 · answered by D W 1 · 0 0

well you see should would be..........about 27 and 5 months and 21 days old there was a decimal but i let it out

2007-02-15 18:43:22 · answer #4 · answered by k 1 · 0 0

I think its 29....

2007-02-15 18:40:22 · answer #5 · answered by Anonymous · 0 0

he should be 61.5yrs old

2007-02-15 18:45:15 · answer #6 · answered by Christopher Adams 1 · 0 0

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