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October 25, 2014

October 25, 2014

Posted by **Anonymous** on Wednesday, January 19, 2011 at 6:23pm.

It costs $32 to insure $1000 worth of jewellery or $44.50 to insure $3500 worth of jewellery.

What is the fixed amount to insure jewellery?

A. $27.00

B. $31.25

C. $44.65

D. $58.82

This is what I got told to you, but like y do u have to subtract, I get the first equation, I dont get the second, and It still has to be solved. I really dont understand, please help

F = fixed amount

P = percentage

F + P(1000) = 32

-[f + p(3500) = 44.50]

- MATH_ALGEBRA -
**helper**, Wednesday, January 19, 2011 at 6:46pm(1) F + 1000P = 32

(2) F + 3500P = 44.50

you have to solve these 2 equations simultaneously

By elimination method, to eliminate F, multiply one of the equations by -1

-1(F + 1000P = 32)= -F - 1000P = -32

Now ADD these two equations together

-F - 1000P = -32

F + 3500P = 44.50

0 + 2500P = 12.5

2500P = 12.5

P = .005

substitute P = .005 in one of the equations to find F

F + 1000P = 32

F + 1000(.005) = 32

F + 5 = 32

F = 27

What is the fixed amount to insure jewellery?

A. $27

- MATH_ALGEBRA -
**Anonymous**, Wednesday, January 19, 2011 at 7:04pmThank you so much Helper

- MATH_ALGEBRA -
**helper**, Wednesday, January 19, 2011 at 7:41pmyou're welcome :)

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