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Vocabulary/Term Concepts
Solving One-Step and Two-Step Equations
Solving Multistep Equations with variables on both sides of the equal sign
Writing Ratios and Proportions/Solve Proportions using Cross Products
Solving Percent Problems/Rewriting Equations and Formulas
100
Two ratios of the same value that equal each other.
What is a proportion?
100
5x=10 -Isolate 5 by dividing. -Do to each side of the 'equality' the same operations- divide 10 by 5, also. x=2
What is the value of x: 5x=10
100
12v + 14 + 10v = 80 -Keep in mind before solving that when solving for variables you do the opposite of PEMDAS. -Combine like terms. (12v and 10v) 22v + 10 = 80 -Isolate v by subtracting 10 from each side of the equal sign-simplify the equation to solve for v. 22v = 70 -Isolate v again by dividing it by the number v is being multiplied with. v = 3 and 2/11
What is the value of v: 12v + 14 + 10v = 80
100
14 to 18.....Divide each side by the greatest common factor shared by both numbers. 14 to 18 = 7 to 9 5 : 13.....This ratio is correct, as both numbers are prime and can't be divided any farther into integers.
What is the answer to: Write these two ratios in their simplest form. If they are already simplified, respond "correct". 14 to 18 5 : 13
100
"What percent of 80 is 56".....This is just a problem written in word form. percent of 80 is 56 % * 80 = 56 Let's pretend like this percent sign is a variable. You want to isolate the percent sign by dividing both sides of this equation by 80. % = 56/80 % = 0.7, or 70%
What percent of 80 is 56?
200
An equation that is true for all values of the variable.
What is identity?
300
a to b.....a:b.....a/b
What is the three ways to write a ratio?
400
A literal equation is an equation with more than one variable. (formulas, for example)
What is a literal equation?
500
3/4 = 6/8 4 x 6 = 24 3 x 8 = 24 In conclusion, these proportions, using ________, are proved to be equal.
What is a cross product? (example)