A linear equation in two variables will give an infinite number of solutions. These will comprise the coordinates of points along a straight line in 2-dimensional space.
Use a variable to represent the unknown. 'Translate' the words to math symbols and write an equation to solve. Solve the equation. Check.
You can write an equivalent equation from a selected equation in the system of equations to isolate a variable. You can then take that variable and substitute it into the other equations. Then you will have a system of equations with one less equation and one less variable and it will be simpler to solve.
how can you specify what the variable stand for, write and equation, and solve this problem. a sewing project requires material costing $44 plus some tassels. if the material and tassels are to be purchased with four $20 bills, how many tassels can be purchased if they cost $2.40 each?
you shall add
3n=36 Write the equation n=12 Divide each side of the equation by 3 to get the variable alone.
Read the problem. Write each fact as a variable expression. Write each fact as a sentence.
You do not need to write anything to calculate things mentally.
4 x .25 = 1
x + 75 = 501
I would gingerly perform the step, write the solution,and go on to the next problem.
Without an equality sign the given expression can't be considered to be an equation
Instead of just giving you the answer, I'll tell you how to solve the problem. To solve this problem, write two equations. Let one variable be x and the other y. Then you can say: xy = 800 x + y = -70 Isolate x + y = -70 for y and you get y = -70-x Then plug it back into the first equation, solve for x and plug your answer into the second equation to solve for y. Hope that helps, and let me know if you have any questions :)
write and solve an equation to find the value of x. 8x plus 35 and then 14x-7
1) Solve the equation for the desired variable. 2) Write it in function notation. For example, if y = 2x + 3, it is already solved for "y"; just rewrite it as f(x) = 2x + 3.
If there are two variables, you'll usually need two equations in the two variables, to be able to find a specific solution. How you write the equation depends on the specific problem. In general, it requires some practice, to be able to convert a word problem into mathematical equations.
You can draw a flowchart of solving a particular problem and then write a program to solve that problem.
find the variable(s). then write the equation(s). finally simplify the equation(s)
whatever the equation is write the equation in words then solve each step in a sentence.
you have to write down the equation first so people can answer it
An equation to find the value of the variable 104, 137, 154 and x with a mean of 130 is: (104 + 137 + 154 + x)/4 = 130 395 + x = 130 * 4 x = 145.
To solve this question use a two variable system of equations. First assign a variable to each number: a=first number b=second number Then use the information in the problem to write two equations They have a product of 20 translates to: a x b =20 They have a sum of 9 translates to: a + b =9 Use the method of substitution. Isolate one variable in the 1st equation: a= 20/b Plug it into the 2nd equation: (20/b) + b = 9 Solve for b: b = 5 Now put b back into the 2nd equation: a + 5=9 Solve for a: a = 4 So the solution is 4 and 5.
The answer is....... 1. read the problem 2. determine the unknowns and represent them 3. write an equation 4. solve the equation 5. answer the question
You write it as an equation, and then solve the equation.
1.) write down question 2.) cry. 1) Read the question through until you understand it 2) Find out what it asking you to solve for 3) Write down what is given like equations, variables, constant like pi. ...etc 4) Write down what your solving for. 5) Setup your solution to the problem by doing the following : A) Write : " Given:" B) what equation you are using to solve it C) any constant like pi, e, 10^...etc D) what you are solving for. E) Write: "Step 1:" 5) Write down your equation, you are using to solve it. 6) Do you have to rearrange the equation to get what you are solving for? If so than do it. Show it in step 1 and use it instead of other Write out what math operation you are using to solve it in each of the step by step operation When you finally get your answer for it, do a proof or check for it. Write : " Proof or check" Write down the original equation Replace the found variable with the answer you got for Do the step by step operation and writing down what math operation you are using. If it equals than write : "It checks and equals ". If not - Backtrack to find your error, correct it, redo the proof again until it equals Move on to the next problem.