Midterm Practice Vocab+Formula (6th)

Mark up

Percent added to the whole sale cost to get the retail price

Discount

Percent decrease from the retail price for sale price

Sales Tax

Percent added to the cost of goods and services collected by the government

Commission

Percent sales addition to salary

Tip

Percent of the cost of goods and services

Percent Decrease

Percent up or down of the given value percent of the original

Precent Of Change

Proportion Method

Convert between Measurement systems

EX

Solving proportions

Ratio

A ratio is a comparison of two or more numbers

Rates

A rate is a ratio comparing two numbers with different units

Proportions

A proportion is an equation showing two ratios are equivalent

COP

y/x

1. Additive Relationship GRAPH

Does NOT go through origin

Multiplicative Relationship GRAPH

Goes through origin (0,0) means proportional

Cindy loves Brussels sprouts. Brussels sprouts sell for one $1.55 a pound. If Cindy buys 2.73 pounds, what is her cost of the nearest penny? (Round to hundredths)