How To: Solve a system of equations in algebra
In this math lesson you will learn how to solve a system of equations. Watch the following video to learn how to translate a word problem into a system of linear equations.
In this math lesson you will learn how to solve a system of equations. Watch the following video to learn how to translate a word problem into a system of linear equations.
The trick in this how-to video works with any carbonated beverage (never use beer). Take your beverage and cool it down to a temperature around 20F or -7C. Either the freezer or outside if it is cold enough. When opened it will freeze instantly.
There’s a good chance that you’ll be alone in life one day, and no... I’m not talking about a couch-bound, dateless loser with a pocket pussy and a bag of potato chips. I’m talking about alone. In the wilderness. Hungry. Cold. Lost. You can’t stay in one place too long, so it would be nice to have something to carry your belongings in. Maybe it’s post-apocalyptic land where you’re the sole survivor, and all the backpacks and rucksacks in the world are but mere ash. Either way, knowing this si...
Who would have thought that dryer sheets can be a quick remedy for super-staticky flyaway hair? But it's true. It's all about the positive charges in the sheets and their ability to neutralize electron buildup. And that's not the only surprising quick fix for hair problems that you can easily find in your home.
The speed bag helps the boxer work on his eye-hand coordination. While not intended for power, the speed bag is an important aspect of the boxer's training. Learn how to hit a speed bag in this boxing video tutorial.
For Android 11, Google is doubling down on the handy App Suggestions feature that debuted in Android 10's app drawer by expanding it to the home screen dock.
In a bold move, Samsung has decided to forgo the Galaxy S11 moniker and jump straight to the S20. Perhaps it's marketing for the new 20:9 aspect ratio and 120 Hz display, or maybe it's just the fact that it's releasing in 2020.
Apple unveiled the latest generation of its flagship earbuds, AirPods Pro, on Monday, Oct. 28. Aside from the increased price tag, new in-ear design, and wider charging case, the biggest change by far is in Active Noise Cancellation. Finally, we can listen to AirPods on a plane, walking by a busy road, anywhere with a lot of noise pollution. But how does it work?
It's difficult to find that perfect lighting when you're taking a photo. You won't always have studio lights — or at all — and you're not always out during golden hour. So how can you combat lighting issues without waiting around for a well-lit condition? Do it in post. Adobe's Photoshop Express makes it easy to fix and even customize the lighting in your photos using the right adjustments.
A new name isn't the only thing iBooks received in the iOS 12 update for iPhones. Aside from streamlining the name to "Books," Apple added a wish-list feature to its reading app so you can keep track of all the e-books and audiobooks you'd like to read from the Books Store.
Google's launchers are some of the most polished home screen apps out there, but they lack the ability to customize. With the old Google Now Launcher, we had Xposed GEL Settings to add options for tweaking the layout, but that project was abandoned when the Pixel Launcher came out. Now, a new root mod will give us some key customization settings for Google's latest launcher.
Google just rolled out a revolutionary feature to its Pixel devices — Google Lens. Previously, Lens had only been available in the Photos app, but now, whenever you want to learn about something in the real world, you can just bring up Google Assistant, turn on the camera, then let Google's famous AI analyze the scene.
People who have heart disease get shingles more often than others, and the reason has eluded scientists since they first discovered the link. A new study has found a connection, and it lies in a defective white cell with a sweet tooth.
Citrus greening disease — caused by a bacteria spread by psyllid insects — is threatening to wipe out Florida's citrus crop. Researchers have identified a small protein found in a second bacteria living in the insects that helps bacteria causing citrus greening disease survive and spread. They believe the discovery could result in a spray that could potentially help save the trees from the bacterial invasion.
Often, the most frustrating part of crafting the perfect dinner is feeling like you have to clean every single pot and pan in your kitchen after cooking just one meal. With so many components, it can feel like each step of a single dish requires its very own pot.
Last time in how to train you python, we covered the basics of variables and output. While we were covering variables, we talked briefly about strings. "String" is just a fancier way of saying "Word". A string is simply a set of characters encased in quotations, this lets python know that it is a word. Sometimes when we do things with strings we'll need to change them in order to do something. Python is case sensitive, for example "Null-Byte" is not the same as "null-byte". This is where mani...
Fall is the time for comfort foods—and what is more comforting than crusty bread slathered in melted cheese? Owning a fondue pot is both convenient and wonderful, but not all of us have the luxury of space for nonessential kitchen appliances. However, there are plenty of ways to make an absolutely delicious, lump-free fondue without the traditional equipment.
Many people deal with motion sickness on a daily basis, and if you're reading this, chances are you're one of them. Kinetosis can make your stomach roll, your entire body sweat, and make you feel fatigued and dizzy at even the slightest movement, whether it's related to carsickness, seasickness, or airsickness. And let's not forget the worst part—vomiting.
I was a vegetarian from age 6 until age 23. When I started eating meat again for the first time in 17 years, most people I knew (including me) expected me to be pretty conservative about it: chicken breasts, hot dogs, and all the other "basic" meats that everyone loves.
We recently showed you 8 menu bar apps that ever Mac power user should have, covering apps that allow you to control iTunes, eject drives, organize screenshots, and more—all from that tiny strip at the top of your screen.
We've already seen the visual changes that Android 5.0 Lollipop has brought to the table, but Google spent just as much time altering things under the hood. Awesome new functionality and hardware capabilities have been added left and right, and with the OS already out now, it's high time we had a look at some of these tweaks.
Google's got a hit on its hands with this one. Android 5.0—AKA "Lollipop"—will be making its official debut next month, but a new preview build has given us a glimpse into the future, which looks brighter than ever.
As sure as death and taxes, sitting at a wobbly table at one time or another is inescapable. With your weight on it, the table shifts from one end to the other, lifting one leg in the air and then the other; a parade of seesaws, especially if you have someone sitting on the other end.
HTC's Sense 6 has been out for over a month now with the One M8, and most of you have probably played around with its better known features, like the new Camera app and Harman Kardon audio.
Seeing that you probably can't go ten minutes without lying (according to this study), you're probably interested in becoming a better liar. The best way to do so is to learn what makes a bad liar, and then do the opposite.
The late, great writer Laurie Colwin once wrote that if she were allowed to have only one fruit in her kitchen, she would always choose lemons (or limes, since they can often be used interchangeably).
Mouth burning with pain from eating too much hot sauce or some seriously "spicy" food? Well, ignore your first instinct and steer clear of that cup of cold water — it won't help. Instead, reach for a glass of milk, a lemon slice, a spoonful of sugar, or some starchy bread to dilute the painful heat on your tongue.
Though nobody's going to hide the fact that they're getting sloshed on major holidays, you might want to be more discreet when it comes to your morning pick-me-up or lunchtime tipple during the rest of the year. It used to be that having four martinis at lunch was acceptable and even desirable, but that's really not the case anymore.
I've never understood the phrase "smooth as a baby's bottom" to describe a really close shave. I mean, have you ever touched a baby's cheek? It's even smoother and a lot more sanitary. It just doesn't spew off the tongue as nice.
A deck of cards may be a magician's best way to demonstrate his or her's sleight of hand, but for the prankster, it's the perfect way to deliver a shocking 300 volts of electricity! And that's exactly what I'm going to show you how to do today. Stuart Edge used it in his "Electric Shock Kissing Prank" to show the ladies how a man can really put the sparks in a kiss.
There are two options when it comes to a dent in your car — live with it, cringing each time it enters your view, or get rid of it. While the latter is obviously the best option, most of us will probably just live with dents and dings since spare money is better spent on the actual functionality of the vehicle. However, there is a way to knock out automobile dents yourself with relatively little cash in the bank.
I'm sure that there are plenty of people out there who have no idea what a plague doctor is/was, so I'll start with an explanation.
Anyone that has ever watched a member of the opposite sex play a video game knows that the other gender does it wrong.
Finding love is tough. Movies like The Notebook and Twilight have ruined the expectations of love and relationships for us guys. Some women's ideal love situation is being kissed by a glittery sparkling vampire. "I know we only met a few seconds ago, but I'm deeply in love with you."
For those who don't know, LEGO recently came out with a new line called Monster Fighters. This set is about fighting monsters, sure, but it's about fighting classic monsters in a Steampunk universe. Just look at this promotional picture from the LEGO site: That LEGO dude (properly called a minifig) is wearing a vest, pocket watch, bowler hat, and a mean smirk. Not to mention that he has a robotic leg. You won't find the word "steampunk" anywhere in this marketing campaign, but I call Steampun...
I love robots. They have the potential to evolve into Asimovian destroyers of the human species, but have only just mastered the art of cleaning my rug. They have an ever increasing cool factor and a growing number of cheap and simple components that let the hobby roboticist reach for the burning miasmas of plasma. But to get to the stars, we need to start with the basics.
We've all attempted to fold a paper airplane before, right? One we hoped would sail majestically through the air for a good while but just ended up nose-diving into the grass. Paper planes, an invention likely as old as paper, are models of engineering; and they must account for the same dynamics as real planes, from drag force to stability to weight. So what is the perfect design?
Walls don’t last forever, be prepared. Building a house from scratch, a room add on or if it’s just time to turn one room into two you will need to make a sturdy wall frame to ensure the proper construction of your new wall.
Be it the ocean, a lake or a river, there is no better way to enjoy the water and nature than by kayaking. Like all outdoor activities, being prepared and knowing how to use your equipment will help insure you have a great time.
It's a trick that never fails to amaze. You're placed in handcuffs, but with a flick of the wrist, you're free! Kick off your career as a daring escape artist with these simple tips.