A certain electronics manufacturer found that the marginal cost CC to produce x DVD/Blu- ray players can be found using the equation C=0.03x2−8x+700C=0.03x2-8x+700. If the marginal cost were $465, how many DVD/Blu-ray players were produced?

The price of a bag of coffee beans, P, varies directly with the size, S, of the bag.If a 20 oz bag of coffee beans costs $17.00, find the variation equation and use that to predict how much a 48 oz bag of coffee beans would

A thief grabbed a cell phone and ran at a speed of 6 mps. When he was 20 meters down the road a police officer took after him and ran at a speed of 8 mps. How long will it take for the officer To Catch a Thief?

An American author estimated a relationship between hourly wages in dollars (wage), and the height in inches (height), as wâge −10.44 +0.368height. She visits Portugal to present her results and changes the units of height from inches to centimeters (1 inch 2.54 centimeters). Her estimated relationship when height is measured in centimeters is given by wâge = −4.110 + 0.145height wâge = -4.110 + 0.368height wâge = -10.44 +0.935height wâge = -10.44 +0.145height =

A Satellite internet company charges a flat monthly fee of $19.00 plus an addition $8.00 for every megabyte of data used. Write an equation that relates megabytes of data used (D) to the monthly cost (M).

A video store manager observes that the number of videos sold seems to vary inversely as the price per video. If the store sells 580 videos per week when the price per video is $16.70, how many does he expect to sell if he lowers the price to $15.20? Round your answer to the nearest integer if necessary.