briannalong briannalong

Today at 9:41 PM
Mathematics

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a company orders two types or gravel to use in a landscaping project. black gravel is $0.55 per pound and red gravel is $0.80 per pound. to complete the project they will need at least 5,000 punds of gravel, but they can spend at most $3,500

Answer :

Dynonisius Dynonisius

Today at 9:45 PM

so i guess the question is how much red gravel can they buy?

Red gravel: 3000 pounds
Black gravel: 2000 pounds

x+y=5000
0.80x+0.55y=3500

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