91Ó°ÊÓ

Solve the equation. Round the result to the nearest hundredth. Check the rounded solution. $$ 38=-14+9 a $$

In Exercises \(23-26,\) use this information. A rabbit is 30 feet from its burrow. It can run 25 feet per second. A coyote that can run 50 feet per second spots the rabbit and starts running toward it. Write expressions for the time it will take the rabbit to get to its burrow and for the time it will take the coyote to get to the burrow.

Convert the measure. Round your answer to the nearest tenth. 12 fluid ounces to cups \((1 \text { cup }=8 \text { fluid ounces })\)

Convert the measure. Round your answer to the nearest tenth. 21 inches to centimeters ( 1 inch \(=2.54\) centimeters)

A car uses fuel at a rate of 15 miles per gallon. Estimate how many miles the car can travel on 20 gallons of fuel.

Write as a decimal rounded to the nearest hundredth. Then write as a percent. $$ \frac{25}{31} $$

A library has \(14,588\) books which fill its 313 equal-size shelves. The library plans to install 50 new shelves of this size. Write and solve an equation to estimate how many more books the library will be able to hold.

Find the percent. Round to the nearest whole percent. \(\$ 2.25\) tip on a cab fare of \(\$ 14\)

You can solve the formula \(d=r t\) for any of its variables. This means that you need to learn only one formula to solve a problem asking for distance, rate, or time. Explain.

Round to the nearest tenth. A total of 382 kilograms of lunar samples (rocks, dust, and so on) were collected during the six Apollo moon landings between 1969 and 1972. The 110.5 kilograms of lunar samples collected by the Apollo 17 astronauts represent what percent of the total weight of the samples?