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y varies directly as x.
y = –8 when x = –2
What is the equation? Find x when y = 32. y varies directly as x.
y = 45 when x = 15
What is the equation? Find x when y = 15 y varies directly as x.
y = –4 when x = 2
What is the equation? Find y when x = –6. y varies directly as x.
y = –9 when x = 3
What is the equation? Find y when x = –15. After 25 minutes, a swimmer has completed 100 laps. How many laps can she swim in 46 minutes? Two pounds of jelly beans costs $12. If I spend $21, how many pounds did I buy? Twenty concert tickets costs $600. If I buy 4 tickets, how much did I spend? After three years, Bill has been given 21 detentions.
After his fourth year, how many detentions will he have?
"a varies directly as b". If a = 3 when b = 24, find b when a = 10. 36 8 1.25 80 If m varies directly as y and m is 6 when y is 36, find the constant of variation. 6 36 1/6 1/36 |