Question

5. Rain in Seattle: Rain is falling steadily in Seattle, Washington. After 6 hours, 4

Inches of rain has fallen. Find a.

Answer 1

a = 1.5 hours

Explanation:

Table for the rain in Seattle shows a proportional relation between "Time" and "Rain".

After 6 hours, 4 inches of rain has fallen.

Rain ∝ Time

Or

R ∝ T

R = kT [Where k = proportionality constant]

T =
`(R)/(k)`

For T = 6 hours and R = 4 inches

k =
`(R)/(T)`

k =
`(4)/(6)`

=
`(2)/(3)`

Similarly, R = 1 inch,

T =
`(1)/((2)/(3))`

T =
`(3)/(2)` = 1.5 hours

Therefore, a = 1.5 hours will be the answer.

Option (B) will be the correct option.