Variation

Find an equation of joint and combined variation. a varies directly as b and c, and a = 90 when b= 6 and c = 3. Find a when b = 4 and c = 12.

a = 10

Find an equation of joint and combined variation. Then solve for the missing value. a varies directly as b and c, and a = 90 when b= 6 and c = 3. Find a when b = 4 and c = 1/2.

a = 10

Find an equation of joint and combined variation. Suppose y varies jointly as x2 an z, and y =56 when x = 4 and z =7. Find y when x = 9 and z = 3.

a = 121.5

Find an equation of joint and combined variation. a varies directly as b and inversely as c, and a = 5 when b = 2 and c = 4. Find a when b = 5 and c = 25.

a = 2

Find an equation of joint and combined variation. Then solve for the missing value. a varies directly as b and inversely as c, and a = 5 when b = 2 and c = 4. Find a when b = 5 and c = 25.

a = 2

Find an equation of joint and combined variation. m varies directly as n and inversely as p and m = 5 when n = 34 and p = 15. Find m when n = 9 and p = 6.

m = 2

Find an equation of joint and combined variation. Then solve for the missing value. m varies directly as n and inversely as p and m = 5 when n = 3/4 and p = 1/5. Find m when n = 9 and p = 6.

m = 2

Find an equation of joint and combined variation. Then solve for the missing value. m varies directly as n and inversely as p and m = 5 when n = 3/4 and p = 1/5. Find m when n = 9 and p = 6.

m=2

Find an equation of joint and combined variation. Suppose y = varies jointly as the square of x and z, and y = 21 when x = 3 and z = 7. Find y when x = 6 and z = 23.

y = 8

Find an equation of joint and combined variation. Then solve for the missing value. Suppose y = varies jointly as the square of x and z, and y = 21 when x = 3 and z = 7. Find y when x = 6 and z = 2/3.

y = 8