Question

For each ratio given, fill in the description of the ratio relationship it could describe.

a. Part-to-whole ratio
b. Double ratio
c. Inverse ratio
d. Direct ratio

Answer 1

a. Part-to-whole ratio. A part-to-whole ratio describes the relationship between a part and the whole. A double ratio describes a relationship where the second quantity is twice the first quantity. An inverse ratio describes a relationship where one quantity increases while the other quantity decreases. A direct ratio describes a relationship where both quantities increase or decrease at the same rate.

Step-by-step explanation:

a. Part-to-whole ratio: A part-to-whole ratio is used to describe the relationship between a part and the whole. For example, if there are 15 red marbles out of a total of 30 marbles, the part-to-whole ratio is 15:30 or 1:2.

b. Double ratio: A double ratio is used to describe a relationship where the second quantity is twice the first quantity. For example, if the first quantity is 2 and the second quantity is 4, the double ratio is 2:4 or 1:2.

c. Inverse ratio: An inverse ratio is used to describe a relationship where one quantity increases while the other quantity decreases. For example, if the first quantity is 2 and the second quantity is 4, the inverse ratio is 2:4 or 1/2:1.

d. Direct ratio: A direct ratio is used to describe a relationship where both quantities increase or decrease at the same rate. For example, if the first quantity is 2 and the second quantity is 4, the direct ratio is 2:4 or 1:2.