document.write( "Question 128057: You have $100 dollars. You must purchase a total of 100 animals. Dogs costs $10 each. Cats costs $3 each. Mouse cost .50 cents each. how many Dogs, Cats, Mice do I need to total up to 100 animals and I have to spend the entire $100 dollars. \n" ); document.write( "
Algebra.Com's Answer #93763 by ankor@dixie-net.com(22740)\"\" \"About 
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You have $100 dollars. You must purchase a total of 100 animals. Dogs costs $10 each. Cats costs $3 each. Mouse cost .50 cents each. how many Dogs, Cats, Mice do I need to total up to 100 animals and I have to spend the entire $100 dollars.
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\n" ); document.write( "Here's one solution
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\n" ); document.write( "Let d = no. of dogs
\n" ); document.write( "Let c = no. of cats
\n" ); document.write( "Let m = no. of mice
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\n" ); document.write( "No. of animal equation:
\n" ); document.write( "d + c + m = 100
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\n" ); document.write( "Total cost of animals equation
\n" ); document.write( "10d + 3c + .5m = 100
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\n" ); document.write( "There can't be very many dogs, 5 at the most
\n" ); document.write( "Assume there are 5 dogs
\n" ); document.write( "10(5) + 3c + .5m = 100
\n" ); document.write( "3c + .5m = 100 - 50
\n" ); document.write( "3c + .5m = 50
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\n" ); document.write( "The number of animal equations
\n" ); document.write( "5 + c + m = 100
\n" ); document.write( "c + m = 95
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\n" ); document.write( "Multiply the $$ equation by 2 and subtract the above equation
\n" ); document.write( "6c + 1m = 100
\n" ); document.write( "1c + 1m = 95
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\n" ); document.write( "5c + 0m = 5
\n" ); document.write( "c = 5/5
\n" ); document.write( "c = 1 cat
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\n" ); document.write( "Find mice using c + m = 95
\n" ); document.write( "1 + m = 95
\n" ); document.write( "m = 94 mice
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\n" ); document.write( "Let's assume we have 5 dogs, 1 cat, and 94 mice a total of 100 animals
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\n" ); document.write( "Check the total cost
\n" ); document.write( "5(10) + 3(1) + .5(94) =
\n" ); document.write( "50 + 3 + 47 = $100
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