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January 31, 2015

January 31, 2015

Posted by **Joel** on Tuesday, August 16, 2011 at 1:05pm.

- Maths -
**bobpursley**, Tuesday, August 16, 2011 at 1:13pm3W-800=T

W=4/10 T

can you take if from here/

- Maths -
**Joel**, Tuesday, August 16, 2011 at 1:23pmI'm sorry, I can't get it, pls help clarify. thanks

- Maths -
**Reiny**, Tuesday, August 16, 2011 at 3:58pmbobpursley had this:

Wife's salary = W

Mr T;s salary = 3W - 800

then it said: "His wife's salary is 4/10 as much as his" ----> W = (4/10)T , again as bobpursley told you

but T = 3W-800

so

W = (4/10)(3W-800)

times 10

10W = 4(3W-800)

10W = 12W - 3200

3200 = 2W

W = 1600

then T = 3(1600) -800 = 4000

check: is 1600 equal to 4/10 of 4000 ?

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