Sumaria
Answered

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plz help.
Four sisters bought a present for their father. they received a 10% discount on the original price of the gift. After the discount was taken, each sister paid $9.00. What was the original price of the gift? 
its multiple choice so the choices were between A.$40.00, B.$36.00, C.$16.00, & D.$32.73

Sagot :

mariamikayla
[tex]x-\ the price \ of \ the \ gift \ \\ \\ 10\% \ of \ x= \frac{10}{100}*x= \frac{1}{10}*x=\frac{x}{10}- the \ discount \\ \\x^{(10} -\frac{x}{10}= \frac{10x-x}{10}= \frac{9x}{10} -the \ new \ price \ \\ \\4*9.00 \$=36 \$ -the \ price \ after \ discount \\ \\ \frac{9x}{10}=36 =>x=\frac{10*36}{9} \\ \\ \boxed{x=40 \$}[/tex]

the variant A.$40.00
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