Help, please! Medal is offered to the first person!

A water reservoir loses about 1.5 inches of water a day. In the equation below, d represents the number of days and i represents the total inches of water lost.

The relationship between these two variables can be expressed by the following equation:

i=1.5d

How many inches of water is lost after 7 days?
A.

7
B.

8.5
C.

9
D.

10.5

Question

Help, please! Medal is offered  to the first person!

A water reservoir loses about 1.5 inches of water a day. In the equation below, d represents the number of days and i represents the total inches of water lost.

The relationship between these two variables can be expressed by the following equation:

i=1.5d

How many inches of water is lost after 7 days?
		A. 	

7
		B. 	

8.5
		C. 	

9
		D. 	

10.5

anonymous · Answer

@MysticFury

mysticfury · Answer

so since we know D is the number of days we can just plug it in

i = 1.5 x 7 (since 7 if the amount of days)

that gives us?