Mathematics, 20.10.2020 02:01 elf55
Each morning darnell does a combination of aerobics and stretching exercises. the exercises burn different amounts of calories per minute. the following system represents the time darnell exercises and the amount of calories burned. in the system, x represents the number of minutes darnell spends doing aerobics and y represents the number of minutes he spends stretching
x+y=60
15x+5y=500
Answers: 3
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Each morning darnell does a combination of aerobics and stretching exercises. the exercises burn dif...
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