To find the cost of Mary's assessment, you will need to find the part of the project that applies to her property.
This would be 38 feet of the 200 total feet.
38 divided by 200 = 0.19 or 19%
19% of the cost would be Mary's assessment.
0.19 x 7000 = $1330.
$1330 is the cost of Mary's assessment.
Answer:
B. decrease of 12
Step-by-step explanation:
Number of people who left the store = 14
Number of people who entered the store = 10
Again,
Number of people who left the store = 13
Number of people who entered the store = 5
Total people who left the store = 14 + 13
= 27 people
Total people who entered the store = 10 + 5
= 15 people
Number of people remaining in the store = Total people who entered the store - Total people who left the store
= 15 - 27
= -12
This means there is a net decrease in the number of people in Carmen's Computer Store
Assume
Combining the fractions on the right hand side gives
The fractions will be equal as long as the their numerator are equal:
Polynomials are equal to one another if the coefficients of like terms are equal:
Solving this, you'd get and , so that your answer would be (26, -23).
- - -
Instead of solving the system of equations above, there is a trick that involves picking so that some terms disappear and solving for either is much faster.
At the point where we have
notice that setting will eliminate . Doing so, we get
while setting would give