3 years ago

I need help rally fast this is a test WILL MARK BRAINLEST!!

Mathematics

1 answer:

lawyer [7]3 years ago

7 0

Answer:

3:11

Step-by-step explanation:

8:3 is the ratio because, to make his special energy drink Jerome uses 8 cups of water and 3 cups of drink mix. Becasue, there are a total of 11 cups, and he only uses three cups as the drink mix

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Step-by-step explanation:

$A\cup B=A\cup(A-B)\\\\A\ and\ A-B\ are\ disjoint\ that\ means\ there\ is\ no\ common\ element\ in\ these\ two.\\\\n(A\cup B)=n(B\cup(A-B))\\\\n(A\cup B)=n(B)+n(A-B)\ \ \ \ \ \ \ as\ for\ disjoint\ set\ P,Q\ n(P\cup Q)=n(P)+n(Q)\\\\(n(P-Q)=n(P)-n(P\cap Q))\\\\n(AUB)=n(B)+n(A-B)\\\\n(AUB)=n(B)+n(A)-n(A\cap B)\\\\n(AUB)=n(A)+n(B)-n(A\cap B)\\\\Hence\ given\ statement\ is\ true$