graduation equation is an equation is an equation that represents the ingrained number of objects in the problem, such as x+ y=t. x and y are variables in equation and t represents the total of the two.
What near the 2nd equation?
The second equation represents the total assess of the objects in equation one. The author plugs into the equation the value of each variable. Once you continue to solve this equation it will allow in the values of the x variable and the y variable. You earth-closet plug the result from the 2nd equation into your first equation to check your answers.
How are the illustrations similar?
They all use the like basic formulas for the equations. The first equation in every example is the total objects in the problem and each of the second equations represents the total amounts and solves for the variables.
How are they different?
The examples were solved using different methods.
star example used elimination. Another of the examples used substitution. Then, one of the examples the schoolbook suggested you could use elimination or substitution.
Example to solve from text: Kings Service station uses two kinds of cleanup spot solutions containing acid and water. Attack is 2% acid and Blast is 6% acid. They want to mix the two to return 60 quarts of a solution that is 5% acid. How many quarts of each should they use? permit a= quarts of Attack and b= quarts of Blast.If you want to get a full essay, order it on our website: Orderessay
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