Asked by Jer
A marketing company asked 100 people whether they liked a new skin cream and lip balm. The company found that 80% of the people who liked the new skin cream also liked the new lip balm, and that 50% of the people who did not like the new skin cream liked the new lip balm. If 77 people liked the lip balm, how many people liked the skin cream?
___ people
___ people
Answers
Answered by
MathMate
First observation:
People either liked the skin cream (x of them) or didn't like the skin cream (100-x of them).
"80% of the people who liked the new skin cream also liked the new lip balm"
that makes 0.8x liked new lip balm.
"50% of the people who did not like the new skin cream liked the new lip balm"
that makes 0.5(100-x) of them.
Total=0.8x+0.5(100-x)=77
Solve for x.
People either liked the skin cream (x of them) or didn't like the skin cream (100-x of them).
"80% of the people who liked the new skin cream also liked the new lip balm"
that makes 0.8x liked new lip balm.
"50% of the people who did not like the new skin cream liked the new lip balm"
that makes 0.5(100-x) of them.
Total=0.8x+0.5(100-x)=77
Solve for x.
Answered by
bill
90
Answered by
monalisa
.8+.5 (100-x)=77
.8+50-.5x=77
-.5x=77-50.8
-.5x=26.2
-.5x/-.5=26.2/-.5
x=-52.4
.8+50-.5x=77
-.5x=77-50.8
-.5x=26.2
-.5x/-.5=26.2/-.5
x=-52.4
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.