Answer:
<u>The correct answer is A. 5 kilograms</u>
<u>Both services will cost the same delivering a 5 kilograms package, but not for packages of 6 kilograms or more. </u>
Correct statement and question:
You want to deliver a package to Japan. The FedEx delivery service charges a $15 flat fee plus $2 per additional kilogram. You can also use the USPS Priority Mail service which charges you $5 per kilogram. After how many kilograms will the total costs of the two options be the same? Write a system of equations in order to solve this problem.
(A) 5 kilograms
(B) 10 kilograms
(C) 15 kilograms
(D) 20 kilograms
Source:
http://www.hoodriver.k12.or.us/cms/lib06/OR01000849/Centricity/Domain/788/Algebra%20work%20sample%20assignements.docx
Step-by-step explanation:
After how many kilograms will the total costs of the two options be the same? Write a system of equations in order to solve this problem.
For solving the problem, we will write the following equation:
x = Weight of the package that we want to deliver to Japan
FedEx delivery = 15 + 2x
USPS Priority Mail service = 5x
15 + 2x = 5x
2x - 5x = -15
-3x = - 15
x = -15/-3
x = 5
<u>The correct answer is A. 5 kilograms</u>
<u>Both services will cost the same delivering a 5 kilograms package, but not for packages of 6 kilograms or more. </u>
Answer: it’s b, f(x)=54(2/3)^x-1
Step-by-step explanation:
A+b=c 67891011121314151617181920