Acar is moving at a fixed speed. the distance d that the car covers is then directly proportional to the time t it moves. find the speed of the car. write a formula that connects d and t. what is the coefficient of variation k equal to? if d=20 miles when t=15 minutes, write a proportion to find d for t=20 minutes

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.