Rachel fills 13 water bottles per hour, so she contributes 13R. Alyssa fills 15 bottles an hour, so she contributes 15A, plus 5 for the additional water bottles filled. Thus, the full expression is:
13R+15A+5
I believe the answer is B because you multiply 18 and 40 then subtract 320 from that and you will 400.
Answer:
There is an inverse relationship between the total magnification and the diameter of the field of view – i.e., as magnifications increases the diameter of the field decreases in proportion, so the diameter of field of view at different magnification can be calculated mathematically, using the formula.
Step-by-step explanation:
Multiply the amount she deposits every month by the number of months (m) and add it to her starting amount:
The equation will look like this:
y = 30m + 16