"S varies inversely with M," ; S= k ____ M (Hint: Word form will be used to substitute for divison and multiplication signs. ex: ab = a "times" b; c/d = c "over" d.)
The number of workers n to clean a stadium after a game varies inversely as the amount of time t allowed for the clean up. If it takes 25 workers to clean the stadium when 6 hours is allowed for the job, how many workers are needed if the stadium must be cleaned in 5 hours?
SOLVE: Y varies jointly as x and the square of z and inversely as w. Y=12, X=5, Z=3, W=15. What does K equal? (Hint: spell out the number in words.)
To clear fractions, multiply both sides of the equation by the ___ of the denominators.
K is the _____ variable used
Second, use the given information to determine the ____ of k.
SOLVE: T varies inversely with U. T= K over U; U= 4, T= 5. Find K. (Hint: Write number in word form.)
Y= kxz ; Y varies ______ as x and z
True or False: For direct and joint variation you are multiplying the variables.
You must use representative _____.
SOLVE: The electric current E, in amperes, varies directly as the voltage V. When 15 volts are applied, the current is 5 amperes. What is the current when 18 volts are applied? (Hint: Answer in word form.)
D varies inversely as A; D= 1/2, A= 10. D= K over A. K=5. What does D equal? D= __ over A. (Hint: Write answer in word form.)
Third, plug the value of the variation constant k back into the _______ from step 1.
Y=kx ; Y varies ____ as x
Y varies directly as F and inversely as R. Y= 2, F= 4, R= 6. What does K equal? (Hint: Answer in word form.)