jan went grocery shopping and only bought items which had been marked down. the items she bought, along with…

jan went grocery shopping and only bought items which had been marked down. the items she bought, along with their prices, can be seen below.\nitem final price markdown\nchicken $8.47 15%\nmilk $2.16 20%\nonions $0.89 10%\npotato chips $1.45 12%\noranges $1.36 25%\nflour $4.39 18%\nwhat would be the total of jans grocery bill if she purchased all of the items before they were marked down?\n a. $15.85\n b. $16.50\n c. $22.46\n d. $24.66
Answer
Answer:
D. $24.66
Explanation:
Step1: Find original price of chicken
Let original price be $x$. Then $x(1 - 0.15)=8.47$, so $x=\frac{8.47}{0.85}=9.9647$ (rounded to 4 - decimal places).
Step2: Find original price of milk
Let original price be $y$. Then $y(1 - 0.20)=2.16$, so $y=\frac{2.16}{0.8}=2.7$.
Step3: Find original price of onions
Let original price be $z$. Then $z(1 - 0.10)=0.89$, so $z=\frac{0.89}{0.9}=0.9889$ (rounded to 4 - decimal places).
Step4: Find original price of potato chips
Let original price be $w$. Then $w(1 - 0.12)=1.45$, so $w=\frac{1.45}{0.88}=1.6477$ (rounded to 4 - decimal places).
Step5: Find original price of oranges
Let original price be $u$. Then $u(1 - 0.25)=1.36$, so $u=\frac{1.36}{0.75}=1.8133$ (rounded to 4 - decimal places).
Step6: Find original price of flour
Let original price be $v$. Then $v(1 - 0.18)=4.39$, so $v=\frac{4.39}{0.82}=5.3537$ (rounded to 4 - decimal places).
Step7: Calculate total original price
$9.9647+2.7 + 0.9889+1.6477+1.8133+5.3537 = 24.6683\approx24.66$.