Question

a food worker has safely cooled a large pot of soup to 70 degrees within two hours. what temperature must the soup reach in the next four hours to be cooled properly

Answer 1

\huge \tt \: ✎union \: and \: intersection✎unionandintersection

\large \rm \: the \: set \: of \: all \: elements \: of \: \: two \: sets\: is \: the \:\large \green{{ \sf{union.}}}thesetofallelementsoftwosetsistheunion.

\large \rm \: the \:set \: composed \: of \: common \: elements \: in \: two \: sets \: is \: the \: \large \green{{ \sf{intersection.}}}thesetcomposedofcommonelementsintwosetsistheintersection.

{Suppose A = {a, b, c} B={c, d, }. \: A∩B = {c} A∪B = {a,b,c,d}.

\begin{gathered} \large \tt solution : \\ \large \green{{ \sf{understand \: the \: concept \: of \: intersection \: and \: union.}}}\end{gathered}

solution:

understandtheconceptofintersectionandunion.

{ \large { \pink{ \overline{ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}}

{} \ _{ \red{ \heartsuit}}