There are 70 balls in a box: 20 red, 20 blue, 20 yellow, and 10 that are either black or white. What is the least number of ball
1 answer:
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We have that the unit rate is 2 [Option B].
***Explanation***
We have that a proportional relationship is characterized for having the form:
Here a and b are the values that are proportional to one another and k is the constant of proportionality.
In our case we are given:
Here x & y are the proportional values and 2 is the constant of proportionality.
And, from properties of division, we have that:
