Proportional
A unit rate of 2.1875
There is no rate, but there is a fraction: 1/4
A unit rate cannot have a remainder. A unit rate is a ration that has the unit as one and the rate has to be equal. If not, you either did a calculation mistake or the ratio is not a unit rate.
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.
Yes. EX) 12/5 = 2.4
Yes. EX) 12/5 = 2.4
yes because a ratio is a rate so a rate would have to be a ratio
Yes. EX) 12/5 = 2.4
It is often a ratio.
No. It can be but need not be. For example, you might calculate the ratio of today's temperature in Celsius and in Fahrenheit and calculate the ratio. That is not a rate.
A percent is a ratio, or rate, that compares a number to100
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The higher the ratio, the faster the rate of diffusion
The surface area to volume ratio of a cell affects the rate of diffusion in that the higher the ratio, the faster the rate of diffusion. This is a directly proportional relationship.
A unit rate is a ratio: it does not have a solution!
When the second element of the ratio is 1.