Anna’s recipe calls for 2 cups of lemonade concentrate and 3 cups of water. bailey’s recipe calls for 3 cups of lemonade concentrate and 5 cups of water. suppose each person pours herself one cup of the lemonade she made. how much concentrate is in each person's cup? how do you know

Step-by-step explanation:

Anna's recipe makes 2+3 = 5 cups of lemonade, of which 2 cups are concentrate. Thus, concentrate makes up 2/5 of the volume of Anna's lemonade. 1 cup of it will contain 2/5 cup of concentrate.

Bailey's recipe makes 3+5 = 8 cups of lemonade, of which 3 cups are concentrate. Thus, concentrate makes up 3/8 of the volume of Bailey's lemonade. 1 cup of it will contain 3/8 cup of concentrate.

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I know this because I did the math. The assumption is that the concentrate is well-mixed in each case.

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

a

step-by-step explanation: