Working on an explation of solution problem. Here is the question. Given: After 30% reduction the price of the computer is $840. Explanation: Step 1 Let the original price of the computer be X Step 2 There are no other variables in the questions. Step 3 Since 30% of the price is reduced from the original price and purchased at $840, the equation will be as follows X-.3X = $840 Step 4: Solve the above equation X-.3X = 840 .7X $840 .7X/.7X = 840/.7 My question is how did the .3X become .7X. I understand the rest of the problem just not how the .3X becomes .7X.
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Working on an explation of solution problem. Here is the question.
Given: After 30% reduction the price of the computer is $840.
Explanation:
Step 1 Let the original price of the computer be X
Step 2 There are no other variables in the questions.
Step 3 Since 30% of the price is reduced from the original price and purchased at $840, the equation will be as follows
X-.3X = $840
Step 4: Solve the above equation
X-.3X = 840
.7X $840
.7X/.7X = 840/.7
My question is how did the .3X become .7X. I understand the rest of the problem just not how the .3X becomes .7X.
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