Direct
Inverse
Joint
Mixed
MMA
100
The direct variation equation.
What is y = kx
100
The inverse variation equation.
What is y = k/x?
100
The equation for joint variation using y, x, k and z
What is y = kxz?
100
The formula for y varies directly with x and inversely with z.
What is y = kx/z?
100
When y = x cubed, the domain is
What is all real numbers?
200
If y varies directly with x and when y = 1, x= 2? k = ?
What is 1/2
200
K when y varies inversely with x and when y = 4, x =2?
What is 8?
200
If y varies jointly with x and z. K when y = 4 =, x =2 and z = 3
What is 4/5?
200
Y varies inversely with x and directly with w. What is the equation solved for k.
What is k=xy/w
200
The number of ways I can arranged 6 books of 8 on my bookshelf. Yes I care about the order.
What is 20160?
300
k = ?, if y varies directly with x and when y = 25, x= 2? Leave answer in fraction form.
What is 25/2
300
The constant of variation when y = 3 and x = 22 assuming that y varies inversely with x.
What is k = 66.
300
Y varies jointly with x and w. When w = 10, x = 4 and y = 5, what is k?
What is 1/8
300
Y varies directly with x and inversely with z. When y = 4, x = 2 and z =10. k = ?
What is 20?
300
If I have 4 ties, 3 pairs of pants and 9 shirts, how many outfits do I have? (No I don't care about how I look)
What is 108?
400
Y is proportional to x. When y = 4, x = 5. What is y when x = 15?
What is 12?
400
Y varies inversely with x. When y = 1/5, x = 15. The value y when x = 25?
What is 3/25?
400
Y varies jointly with w and z. If k = 5/3, what is w when y = 5 and z = 20?
What is 3/20?
400
Y varies directly with z and inversely with s cubed. Y = 1 when z=24 and s = 2. What is y when z = 60 and s =3?
What is 20/27?
400
I have a combination lock which allows me to repeat numbers. I have to pick 3 numbers from 1 to 25 each. The number of combinations for my lock.
What is 15625?
500
John is a busboy. The time it takes to clear tables after a banquet is directly proportional to the number of tables. If it takes 15 min for John to clear 25 tables, how long would it take to clear 150?
What is 90 minutes?
500
The time it takes for a company to mow a field is inversely proportional to the number of workers. If it take 20 minutes for 5 workers to mow a field, how many workers will you need to get the field cut in one hour and 40 minutes?
What is 1?
500
The amount of time it takes a compressor to pressurize an air tank varies jointly with volume of the tank and the leakage of the compressor seals. If it takes an hour to fill a 1000 cubic foot tank with .5 cubic ft per hour seal leakage, how long would it take if the leakage doubles and the volume tripled?
What is 6 hours?
500
Is this a joint variation? yz/w=16. Write the equation solved for y.
What is no (Combination)and y = 16w/z
500
The solutions for x^2+2x+3=0
What is x=-1±i√2
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