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Module 2 Grade 7
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Terms in this set (11)
Complex Fraction
a fraction that contains one or more fractions in the numerator and denominator or both
Constant
a value that does not change
Constant of Proportionality -
A constant ration of two variables related proportionality
Equivalent ratio
ratios that name the same comparison
Percent
a ratio comparing a number to 100
Proportion
an equation that states that two ratios are equivalent
Proportional Relationships
a relationship between two quantities in which the ratio of one quantity to the other quantity to the other quantity is constant
Rate
a ratio that compares two quantities measured in different units
Rate of Change
a ratio that compares the amount of change in a dependent variable tot eh amount of change in an independent variable
Ratio
a comparison of two quantities by division
Unit rates
a rate in which the second quantity in the comparison is one unit
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Verified questions
algebra
Graph the function rule. Explain why the graph is continuous or discrete. A truck originally held 24 chairs. You remove 2 chairs at a time. The number of chairs n remaining after you make t trips is represented by n = 24 − 2t.
algebra
Find the length and width of a rectangle whose perimeter is 40 feet and whose area is 96 square feet.
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An electronics firm is planning to market a new graphing calculator. The fixed costs are $650,000 and the variable costs are$47 per calculator. The wholesale price of the calculator will be $63. For the company to make a profit, it is clear that revenues must be greater than costs. (A) How many calculators must be sold for the company to break a profit? (B) How many calculators must be sold for the company to break even? (C) Discuss the relationship between the results in parts A and B.
algebra
You buy a new car for $22,500. The value of the car decreases by 25% each year. In approximately how many years is the car worth$5300 ?
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