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steposvetlana [31]
3 years ago
14

Andre rode his bicycle to a park located 5 1/2 miles from his house. He returned along the same route. After riding 7 1/2 miles

total, how many more miles does Andre need to ride to reach his home?
Mathematics
1 answer:
SSSSS [86.1K]3 years ago
7 0
He needs to travel 3 1/2 more miles
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20 gallons of the 40% solution, 60 gallons of the 80% solution

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0.40\left(\:80\:-\:y\:\right)\:+\:0.80y\:=\:0.70\:\cdot \:80

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