The answer is B) square miles. This is because a city is very big, and the measure it, miles would be ideal.
Answer:
x=0, y=0
x=8, y=4
Step-by-step explanation:
y= 1/2x
y=1/2(0)
y=0
y=1/2x
y=1/2(8)
y=4
Answer:
A. and C.
if you simplify the expressions, you will see which ones are equal to the expression given
Let's call the two numbers
and
.
Given these variables, we can say:
, based on the first sentence in the problem.
Also, remember that the reciprocal of a number is simply 1 divided by the number. Thus, we can say that:

To solve, we can simply substitute
in for
in the second equation and solve.


- Get terms on the left side to a common denominator for easier addition


- Cross multiplication (
)


- Subtract
from both sides of the equation

- Factor left side of the equation

Now, notice that we have found two solutions, but the problem is only asking for one. This <em>likely </em>means that one of our solutions is extraneous. Let's take a look. Remember that the smaller positive number is equal to 14 less than the larger number. However,
,
Since
is not positive in this case,
is not a solution.
Thus,
is our only solution. In this case,
,
which means that the smaller number is 14 and the larger number is 28.
6x+5y=-15
5y=-15-6x
y=(-15-6x)/5