The equation 5+5+5=550 is a riddle where the directions are to make the equation true by adding only one single line. The answer is to change the equation from 5+5+5=550 to 545+5=550 or 5+545=550.
Know MoreThis is a very simple riddle because the plus sign just has to be reworked into a 4 to make the solution work. It can fool many people though because the equation at first just looks erroneous.
A similar riddle could be 3+3+7=350. Adding a straight line to one of the plus signs will change it to a four, fixing the equation. These types of brain teasers are common in logic books and collections of mind exercises.
Learn more about AlgebraA linear equation solver takes a specified number of linear equations and solves them using established methods. Make sure to review what each program/website is capable of solving because each is slightly different.
Full Answer >A demand equation is an algebraic representation of product price and quantity. Because demand can be represented graphically as a straight line with price on the y-axis and quantity on the x-axis, a demand equation can be as basic as a linear equation. They can also be much more complex, however, and can require significant algebraic manipulation.
Full Answer >The equation used to convert degrees to radians is rad = (deg x pi)/180, where rad stands for radians, deg is degrees and pi is equal to 3.142. Radians and degrees are ways to measure an angle in a circle.
Full Answer >The four steps for solving an equation include the combination of like terms, the isolation of terms containing variables, the isolation of the variable and the substitution of the answer into the original equation to check the answer. The combination of like terms can also be referred to as simplifying. While this is not necessary as a first step, it is much easier to solve an equation when the terms are as simple as possible.
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