Direct, inverse, and joint variation Find k and y when x = 6 and z = 8, if y varies jointly as x and z and y = 60 when z = 3 and x = 4.

a)k = 1/5 , y = 240

b)k = 5 , y = 240

c)k = 1/5 , y = 9.6

d)k = 5 , y = 9.6

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step-by-step explanation:

x^(1/6) · x^(1/6) · x^(1/6)   ·x^(1/6) = x^(4/6)   since we add the exponents

4/6 can be simplified to 2/3

the simplified form is x^(2/3)

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

∠cbe and ∠deb are same-side interior angles.

i took the test