Posted by **becca** on Wednesday, December 14, 2011 at 1:10pm.

Scientists want to set up and test animals in the area for West Nile. The costs to test are $2,200 for setup plus $1.50 to administer each test.

(2200 + 1.5x)/x What is the average cost to test 25 animals?250 animals??1000 animals???

(2200 + 1.5x)=2201.50 *25 =2239.00 Is this correct????

- Algebra -
**becca**, Wednesday, December 14, 2011 at 2:04pm
Opps I think the other one was wrong so here's my new answer: (2200 + 1.5x)=1.5*25+$2,200 =$2,237.50

- Algebra -
**Reiny**, Wednesday, December 14, 2011 at 2:39pm
your cost equation is

cost = (2200 + 1.5x)/x where x is the number of animals tested

so to test 25 animals

= (2200 + 25(1.5))/25 = 89.5

do the same for the other cases.

Very strange formula, does it find the average cost per animal to test ?

- Algebra -
**becca**, Wednesday, December 14, 2011 at 8:23pm
1.50 per animal. 2200.00 for set-up and 1,50 per animal ??? are you sure your right???

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