Dreadpoolio1999

02.05.2021 • 

Mathematics

A coffee shop sells assorted types of coffees, and blends them into their "signature blends". Kenyan sells for $3.20 per pound, and Jamaican sells for $7.80 per pound. A customer pays $22.25 for 3 pounds of a blend. How much of each type of coffee goes into the blend? Amount of Kenyan coffee =

Amount of Jamaican coffee =

Ответ:

mattie2353

03.12.2020

Mathematics

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K(x) = (1/4)^x

(1,4) when x = 1, k(1) = (1/4)^1 = 1/4FALSE
(3, 1/64) when x = 3, k(3) = (1/4)^3 = 1/64TRUE
(-1,4) when x = -1, k(-1) = (1/4)^-1 = 4TRUE
(0, 1/4) when x = 0, k(0) = (1/4)^0 = 1FALSE

answer
(3, 1/64)
(-1,4)

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