The costs of brand a and brand b coffee beans are $400/kg and$280/kg respectively. x kg of brand a coffee beans and y kg ofbrand b coffee beans are mixed so that the cost of the mixture is$320/kg. find the ratio of x: y.

The ratio of x:y is 1/2

Step-by-step explanation:

Let

x> the number of Kg of brand A

y ---> the number of Kg of brand B

we know that

400x+280y=320(x+y)

400x+280y=320x+320y

400x-320x=320y-280y

80x=40y

x/y=40/80

x/y=1/2

6 (3) - 4 + 32

hope this

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.