Question 1012760
Henry bought a CD on sale for one third off. The CD cost Henry $9.90. What was the original price of the CD?

7th grade math. Must find the variable, v. Write the expression using decimals not fractions. Solve showing all steps. 
<pre>With {{{1/3}}} off, he paid {{{2/3}}} of original price
Let original price be U
{{{2/3}}} of original price represents $9.90, so we can say that: 
{{{(2/3)/1 = 9.9/U}}} 
{{{2U/3 = 9.9}}} ------ Cross-multiplying
2U = 3(9.9) ---- Cross-multiplying
U, or original price = {{{3(9.9)/2}}} = {{{highlight_green("$"14.85)}}}