Find the length of x in the figure.
\(6\frac{2}{3}\)
Explanation
The proportion \(\frac{5}{3}=\frac{x}{4}\)can be used to find x. Cross multiply \(5 \times 4=3 x\) so 20 = 3x and \(x=\frac{20}{3}=6 \frac{2}{3}\)
A student buys an algebra textbook for 11.11USD, a philosophy textbook for 15.83USD, and a dictionary for \(\$10.31\). What is the total cost of the books?
A blouse normally costs \(\$18.50\). How much money is saved if the blouse is purchased at a 20% discount?
A menswear store is having a sale: "Buy one shirt at full price and get another shirt for 50% off." If Frank buys two shirts, each with a regular price of \(\$49\), how much money will he save?
Three people go to a restaurant. Their bill comes to \(\$78.00\). They decide to split the cost. One person pays \(\$4.50\); the next person pays 3 times that amount. How much will the third person have to pay?