sindy35111
16.11.2019 •
Mathematics
Solve the following system of equations. -3x + 5y = 80 x + 5y = 40 a. x = -10, y = 10 b. x = 2, y = 17.2 c. x = 8, y = 6.4 d. x = 10, y = -10
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Ответ:
x+5y=40 if the x= -10 and y= 10
Ответ:
30 minutes
Step-by-step explanation:
2 and 1/2 hours is 2 hours and 30 minutes. If you divide that by 5, then 1/5 of 2 hours and 30 minutes is 30 minutes.