The answer you are looking for is B.
This is because Juan has a fine of three dollars (-3), and he pays it off (+3) which means B. shows the proper expression.
I hope this helps!
Answer:
Paula get
and Kawai get
.
Step-by-step explanation:
Given: Paula and Kawai shared
in the ratio of
.
To find: How much money did each person get?
Solution:
We have,
Paula and Kawai shared
in the ratio of
.
So, let Paula get
and Kawai get
.
As per the question,



Therefore, Paula get
, and Kawai get
.
Hence, Paula get
and Kawai get
.
Since x is the number of seconds it took the rock to hit the water, x is the value that we are looking for. When the rock hits the water, it's height is 0, therefore, f(x) = 0. So, we can set the expression on the right equal to 0, and solve for 0. Let's do just that:

We can divide by -16, nothing will happen because 0 divided by anything is 0:

To factor any trinomial in standard form (given below), we must find two numbers that add to "b" and multiply to "c":

So, for this specific question, let's find two numbers that add to -8 and multiply to 9. These are clearly 9 and -1. We can write it in this way now:

Both answers would be valid, but there can't be negative time, so your answer is
"It takes 9 seconds for the rock to reach the water."