How to solve any single-variable equation using the Shift-Solve function of a Casio fx570ES or 991Es/Plus Calculator

# Category: Algebra

Mathematics includes basic algebra, linear and matrix algebra

How to solve a quadratic equation of the form ax^2+bx+c=0 using a Casio fx570ES or 991Es/Plus Calculator

Two pipes were installed in a water tank. One pipe serves as an inlet pipe while another, a multi-purpose pipe, serves as either inlet pipe or a drain pipe. When both pipes are used to fill up the tank, they can fill 7/9 of the tank in 4 hours. In filling the tank, the operator … Continue reading Word Problem| Algebra| Problem 1

Questions 1 Remove (Open) the brackets and simplify the following: $latex 7x+6\left(x-y\right)-3\left(x-2y\right)&s=1&fg=000000$ $latex x\left(x-y\right)+3y\left(x+y\right)&s=1&fg=000000$ $latex \left(y-x\right)\left(2x+4y\right)&s=1&fg=000000$ Question 2 Evaluate the following: Evaluate S to 2 decimal places, where the radius r=10 cm and the height h=500 mm $latex S=2\pi r^2+2\pi rh&s=1&fg=000000$ Evaluate $latex \frac{2x^2-y^3+2xyz}{2yz}&s=1&fg=000000$, where x=1, y=-2, z=-1 Question 3 Transpose the following formulae: $latex P=\frac{RT}{V}\:\:\:\:find\:T&s=1&fg=000000$ … Continue reading Foundation Mathematics for Engineering| Algebra| Foundation Studies| Teesside University| FME-TMA1

Solve the following given system of equations $latex x-y-4z=3&s=1&fg=000000$ $latex 2x-3y+2z=0&s=1&fg=000000$ $latex 2x-y+2z=2&s=1&fg=000000$ Solution: Please watch the video for the solution.

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Questions: There is a rack of 15 billiard balls. Balls numbered 1 through 8 are solid-colored. Balls numbered 9 through 15 contain stripes. If one ball is selected at random, determine the odds against it being solid-colored. A certain lottery requires players to select 4 different numbers, in any order, from 1 to 56 inclusive. … Continue reading Northern Essex Community College, Quantitative Reasoning-MAT122-01A, Spring 2017: Exam #2

A home will likely be the biggest purchase a person ever makes, along with being the most intimidating purchase. But the suitable news is most of the problems homebuyers face have a quick solution, if accomplished before trying to get a mortgage. Also the purpose of this project is help you to overcome the imitating … Continue reading Mortgage Project

Question: A 30-year old man married a 25-year old woman. She died at age 50 and her husband was so devastated that he cried for years. Ten years later after he stopped crying, he died. If he had lived to be 80, for how many years was he a widower? ANSWER: He was a widower … Continue reading Brain Teaser Problem 1