Chapter 3: Problem 55
Write the percent as a decimal. $$ 28 \% $$
Over 30 million students worldwide already upgrade their learning with Vaia!
All the tools & learning materials you need for study success - in one app.
Get started for free
The formula \(d=\frac{n}{2}+26\) relates nozzle pressure \(n\) (in pounds per square inch) and the maximum distance the water reaches \(d\) (in feet) for a fire hose with a certain size nozzle. How much pressure is needed if such a hose is held 50 feet from a fire?
Use the following information. You open a snack stand at a fair. The income and expenses (in dollars) for selling each type of food are shown in the matrices. \(\begin{array}{ccccccc}\text { Day 1 } & \text { Income } & \text { Expenses } & \text { Day 2 } & \text { Income } & \text { Expenses } \\ \text { Hamburgers } & 72 & 14 & \text { Hamburgers } & 62 & 10 \\ \text { Hot dogs } & 85 & 18 & \text { Hot dogs } & 52 & 11 \\ \text { Tacos } & 46 & 19 & \text { Tacos } & 72 & 26\end{array}\) Which type of food had the largest profit?
Evaluate the expression. $$2-8 \div \frac{-2}{3}$$
Find the unit rate. \(\$ 121.50\) for working 18 hours
Solve the equation \(-6 x+3(4 x-1)=9 .\) Organize your work into two columns. In the left-hand column show the solution steps. In the right-hand column explain the transformation you used in each step.
What do you think about this solution?
We value your feedback to improve our textbook solutions.
