batteries sizes
What number of batteries per hour minimizes the cost?
A battery manufacturing plant spends C dollars per hour to produce “D”-size batteries. An efficiency consultant has determined that C is related to the number of batteries produced per hour, x, according to the equation C(x) = 0.01×2 – 2.6x + 245
in order to find the minimum you have to take the derivative of the equation above
C(x) = 0.01x^2 – 2.6x + 245
dc/dt=0.02x-2.6
now let that =0 so that you get a value for X
0=0.02x-2.6
0.02x=2.6
x=130
that would be the number of batteries that minimizes the cost
|
|
EatSmart Precision Pro – Multifunction Digital Kitchen Scale w/ Extra Large LCD and 11 Lb. Capacity The EatSmart Precision Pro Digital Kitchen Scale is a versatile multifunction home appliance. Designed to be highly accurate and aesthetically pleasing, the Precision Pro is manufactured to the highest quality specifications. Weigh items up to 11 lbs quickly and accurately, with results displayed in four different units: grams / ounces / pounds / kilograms. For cooks – Weigh food items directly on… |
|
|
Cuisinart CSB-76 SmartStick 200-Watt Immersion Hand Blender The versatile stick design of the Cuisinart Smart stick Hand Blender lets users blend ingredients right in pots, pitchers, bowls, or clear plastic beaker that’s included. A powerful 200-watt motor operates with an easy one-touch control. Blends drinks, purees soup, mixes pancake and crepe batters in seconds! Both stainless steel blending shaft and beaker are dishwasher-safe…. |
|
|
American Weigh Signature Series Black Digital Pocket Scale, 1000 by 0.1 grams $6.99 Product FeaturesDurable and compact digital pocket scale for easy portabilityWeighs items up to 1000 grams in 0.1 gram incrementsEasy-to-read, backlit LCD display; intuitive, flip-open lid protects the smooth, stainless-steel weighing surfacePowered by 2 AAA batteries, a set of which comes includedBacked by a 10-year warranty Amazon.com Product DescriptionFor anyone needing to take a dependable sc… |
|
|
OEM Mid-Size Wall/Home Charger for Motorola MOTO Z9 Phone! Official Original Equipment and Manufacturer (AC 110-220 volt) $12.95 Official OEM Rapid/Fast Rate Home Charger for Motorola MOTO Z6c World Edition Phone with fixed blades! Original Equipment and Manufacturer (AC 110-220 volt)… |
|
|
Samsung D807 Swivel Holster Samsung D807 Holster with Swivel belt clip will keep your Samsung D807 cell phone comfortably on your hip!Convenient aftermarket swivel holster allows you to wear the Samsung D807 cell phone on your belt, providing safety, comfort, and convenience. Swivel allows your Samsung D807 cell phone to be pushed around rather than jab your side. Package contains one holster with integrated swivel belt clip… |
|
|
Danger Sidekick Slide Leather Case $14.99 Motorola Danger Sidekick Slide Leather carry case Protects your Motorola Danger Sidekick Slide cell phone!Motorola Danger Sidekick Slide Leather carrying case with clear vinyl keypad cover FEATURES a heavily reinforced, leather covered, metal belt clip that really stays on your belt! Clear vinyl plastic cover protects the display and keys of your Motorola Danger Sidekick Slide cell-phone. Motorola… |
|
|
China – At the Crossroads (Teach English to Chinese Students) $9.20 Description: This Palm Treo 500V retractable car charger features a retractable wire. It’s compact size and ergonomic design makes the charger a very convenient product to use in your car. With the rapid retract button located on the top of the charger, press down to retract the full length of the cable. Palm Treo 500V Car Charger Features: Smart IC chip recognizes a fully charge… |
|
|
Black & Decker AF-100-3ZP 30-Feet 0.065-Inch Line String Trimmer Replacement Spool, 3-Pack $11.50 The Black & Decker string trimmer Auto Feed System replacement spools provide 30-foot replacement lines for use in your auto feed string trimmer. These factory wound spools offer maximum reliability and eliminate the hassle of having to wind the spool yourself. The exclusive Black & Decker Automatic Feed Spool (AFS) system automatically advances the cutting string without bumping, using centrifuga… |
|
|
Orbit 91213 One-Dial Garden Hose Digital Water Timer $31.99 This automatic garden hose watering kit has a single port for easy, automatic lawn watering. With a single dial, the Orbit 91213 hose faucet timer makes it effortless for you to set the clock, start time, duration and intervals. It features one-touch rain delay for water conservation. It comes with multilingual packaging and the water timer comes preprogrammed with multiple languages. It is constr… |
|
|
Streamlight 73001 Nano Light Miniature Keychain LED Flashlight, Black $3.75 FEATURES Easily attaches to just about anything with pocket clip or key ring: 1 Up to 8 hours run time: 2 Machined aircraft grade aluminum with anodized finish: 3 Uses 4 alkaline button cell batteries included: 4 White LED bulb with 10 lumens: 5 Weatherproof: 6 Includes a non-rotating snap hook for easy one handed operation when atta… |
|
|
Panasonic TY-EW3D2MMK2 Ultimate 3D Starter Kit (Avatar 3D + 2 Rechargeable Glasses) $399.95 3D Ultimate Pack 3D Active Shutter EyewearApprox .088 lbsSize medium 3D Eyewear Headsize 23.6″ AroundRechargeable Battery for Repeated UseBuilt-in battery is charged using a USB terminalEasy to-operate slide switchMakes it easy to turn the power on and off3D Ultimate Pack includesOne Copy of AVATAR Blu-ray 3D Disc A PANASONIC EXCLUSIVEExperience Avatar in 3D at home!Two Pairs of Active Shutter 3D … |
|
|
Panasonic TY-EW3D10MK1 3D Starter Kit $129.99 Includes 2 x 3D Movies (Coraline & Ice Age) : 2 x 3D Active Shutter Eyewear : Adjustable, Durable Frame – Easily adjusted to fit various face shapes and sizes, from children to adults : Power On/Off Switch – Also includes Auto Power Off function : Designed for Use Together with Ordinary Glasses – Comfortably wear over ordinary prescription glasses : Dimensions (Approximate) – 7.0 W x 1.9 H x 6.9 D… |
|
|
Size Matters $1.99 … |
|
|
Omega Paw Self-Cleaning Litter Box, Large $27.99 It’s so simple, it’s ingenious. To clean you simply roll the top to the floor and return. The internal mechanism deposits the clumped waste into the waste tray, which you then slide out and empty. Your cat can always have clean litter. Saves you money too–no more scoops, liners or filters to buy. Clean litter is never thrown away. Great covered pan design gives privacy to your cat and prevents me… |
|
|
CandyMan Motion-Activated Candy Dispenser $29.99 CandyMan Motion-Activated Candy Dispenser. Our new Motion-Activated CandyMan Candy Dispenser is the fun, smart alternative to messy, germ-filled candy bowls and too-big portions. Perfect for dispensing unwrapped candy, unsalted nuts and gum balls, the Motion-Activated Candy Dispenser from Brookstone is fun for families and perfect for the office. Easy-fill top makes it simple to load in candy. The… |
|
|
LitterMaid LME9000 Elite Mega Advanced Automatic Self-Cleaning Litter Box $149.99 LitterMaid Elite Mega Multi-Cat Self-Cleaning Litter Box No more scooping and no more odors! This makes cat litter box clean-up fast and easy. The automatic, self-cleaning cat litter box rakes away waste and leaves the cat litter box clean after each use. This unit is designed for single cat households. This litterbox creates a clean & healthy environment with an ionic air cleaner. It helps keep y… |
|
|
Bluecell Black color Large & Medium Size Lipo Battery Guard Sleeve/Bag for Charge & Storage + Free Bluecell Cable Tie $13.99 The lipo guard bag is intended to reduce the chances of damage in the event of a lipo fire. 1 x Large Size Lipo Guard Bag + 1 x Medium Size Lipo Guard Bag…. |
|
|
Totes Men’s 2 Pack Battery Operated Hand Warmer $20.00 Hand warmer-battery operated, perfect for outdoor events, start feeling warmer in just one minute, pack of 2… |
|
|
HP 16 Inch Notebook Sleeve – Onyx $13.23 Stylishly Protect Your Laptop Investment Defend your laptop against damage from bumps, dirt, and liquid spills with this slim, stylish protective notebook sleeve from HP in solid onyx black (model NU561AA). A great choice for carrying your laptop while on the go or in between meetings or classes, it fits laptops with displays up to 16 inches in size. This padded notebook sleeve zips closed for… |
|
|
The Very Quiet Cricket Board Book $5.86 A cricket is born who cannot talk! A bigger cricket welcomes him to the world, then a locust, a cicada, and many other insects, but each time the tiny cricket rubs his wings together in vain: no sound emerges. In the end, however, he meets another quiet cricket, and manages to find his “voice.” Children will love the repetitive text as they meet a steady parade of new creatures (including a … |
|
|
The Very Lonely Firefly board book $6.49 Carle Classics in board book format… |
|
|
The Very Clumsy Click Beetle (Eric Carle’s Very Series) $11.62 Summary:Finally, here’s a brand-new book in Eric Carle’s extraordinarily popular Very series. And with a new surprise!When a little click beetle falls onto his back, it seeks the help of a wise old click beetle. “Look at me,” says the more experienced click beetle, giving a loud CLICK and flipping onto its feet. But try as it might, the clumsy little click beetle just can’t seem to land feet first… |
|
|
EatSmart Precision Pro – Multifunction Digital Kitchen Scale w/ Extra Large LCD and 11 Lb. Capacity The EatSmart Precision Pro Digital Kitchen Scale is a versatile multifunction home appliance. Designed to be highly accurate and aesthetically pleasing, the Precision Pro is manufactured to the highest quality specifications. Weigh items up to 11 lbs quickly and accurately, with results displayed in four different units: grams / ounces / pounds / kilograms. For cooks – Weigh food items directly on… |
|
|
Cuisinart CSB-76 SmartStick 200-Watt Immersion Hand Blender The versatile stick design of the Cuisinart Smart stick Hand Blender lets users blend ingredients right in pots, pitchers, bowls, or clear plastic beaker that’s included. A powerful 200-watt motor operates with an easy one-touch control. Blends drinks, purees soup, mixes pancake and crepe batters in seconds! Both stainless steel blending shaft and beaker are dishwasher-safe…. |
|
|
American Weigh Signature Series Black Digital Pocket Scale, 1000 by 0.1 grams $6.99 Product FeaturesDurable and compact digital pocket scale for easy portabilityWeighs items up to 1000 grams in 0.1 gram incrementsEasy-to-read, backlit LCD display; intuitive, flip-open lid protects the smooth, stainless-steel weighing surfacePowered by 2 AAA batteries, a set of which comes includedBacked by a 10-year warranty Amazon.com Product DescriptionFor anyone needing to take a dependable sc… |
|
|
OEM Mid-Size Wall/Home Charger for Motorola MOTO Z9 Phone! Official Original Equipment and Manufacturer (AC 110-220 volt) $12.95 Official OEM Rapid/Fast Rate Home Charger for Motorola MOTO Z6c World Edition Phone with fixed blades! Original Equipment and Manufacturer (AC 110-220 volt)… |
|
|
Samsung D807 Swivel Holster Samsung D807 Holster with Swivel belt clip will keep your Samsung D807 cell phone comfortably on your hip!Convenient aftermarket swivel holster allows you to wear the Samsung D807 cell phone on your belt, providing safety, comfort, and convenience. Swivel allows your Samsung D807 cell phone to be pushed around rather than jab your side. Package contains one holster with integrated swivel belt clip… |
|
|
Danger Sidekick Slide Leather Case $14.99 Motorola Danger Sidekick Slide Leather carry case Protects your Motorola Danger Sidekick Slide cell phone!Motorola Danger Sidekick Slide Leather carrying case with clear vinyl keypad cover FEATURES a heavily reinforced, leather covered, metal belt clip that really stays on your belt! Clear vinyl plastic cover protects the display and keys of your Motorola Danger Sidekick Slide cell-phone. Motorola… |
|
|
China – At the Crossroads (Teach English to Chinese Students) $9.20 Description: This Palm Treo 500V retractable car charger features a retractable wire. It’s compact size and ergonomic design makes the charger a very convenient product to use in your car. With the rapid retract button located on the top of the charger, press down to retract the full length of the cable. Palm Treo 500V Car Charger Features: Smart IC chip recognizes a fully charge… |
