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What is a ratio that compares two quantities with different kinds of units?
A rate.
What is a ratio that compares two quantities with different kinds of units is called a rate. When a rate is simplified so that it has a denominator of 1 unit?
That is known as a unit rate.
Why do you think rates are usually written as unit rates?
A rate is a ratio of two quantities: miles per hour, calories per cookie, dollars per person, ... a unit rate just specifies the units (miles, hours) of the two quantities.
What does the k represent in the direct variation ykx?
The constant of variation in a direct variation is the constant (unchanged) ratio of two variable quantities. The formula for direct variation is. y=kx (or y=kx ) where k is the constant of variation .
Uses division to compare two quantities?
A ratio uses division to compare two quantities.
If two quantities are (proportional nonproportional) they have a constant ratio.?
The answer is proportional.
What is the ratio of two different physical quantities?
Rate
What are two quantities whose ratio is constant?
The diameter and circumference of a circle.
What is a ratio that compares two quantities with two kinds of units?
A rate.
A sentence with proportional?
Two quantities are said to be proportional if they vary in such a way that one of the quantities is a constant multiple of the other, or equivalently if they have a constant ratio.
What is the relationship between two variables quantities with a constant ratio?
It is a direct proportion.
What is a ratio that compares two quantities with different kinds of units?
A rate.
What is a ratio comparing two quantities with different kinds of units?
A rate.
What is a variation that is the relationship between two variable quantities with a constant ratio?
Direct variation.
What makes two ratios equivalent?
They have a constant rate or ratio.
A ratio comparing two quantities with different kinds of units?
Rate
What is the simplified proportional relationship called?
A proportional relationship between two quantities is one in which the two quantities called the unit rate, the rate of change, or the constant of proportionality.
