Question 1139502
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The numbers are ugly enough I don't care to take the time to work the problem all the way through.  I'll let you do that.<br>
Here are two basic ways to set up the problem for solving:<br>
(1) 3 variables, 3 equations<br>
b+j+t = 140000  (this year's cost of the BMW, Jeep, and Toyota is $140,000
j = b-6000  (this year the cost of the jeep is $6000 less than the cost of the BMW)
1.08b+1.04j+1.10t = 151,830  (next year's cost of the three, with the given percent increases, is $151,830)<br>
You would probably solve this system by a combination of substitution and elimination....<br>
(2) 1 variable, 1 equation<br>
Let x be the cost of the BMW
Then the cost of the Jeep is x-6000
Then the cost of the Toyota is 140000-(2x-6000)  ($140,000 minus the cost of the other two)<br>
Then the equation (still ugly; but easier to solve than the system of 3 equations) is<br>
1.08(x)+1.04(x-6000)+1.10(140000-(2x-6000)) = 151830<br>