Which of the inequalities matches the graph below?
2 answers:
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Answer:
Part a) The linear model that represents the monthly cost of each plan is
<em>Plan A</em>
<em>Plan B</em>
Part b) The plans cost the same for 100 GB of data
Step-by-step explanation:
Part a) Write a linear model that represents the monthly cost of each plan if the customer uses g GB of data
Let
g -----> the GB of data
y -----> the monthly cost
we know that
The linear equation that represent each plan is equal to
<em>Plan A</em>
----> equation A
<em>Plan B</em>
----> equation B
Part b) After how many GB of data will the plans cost the same?
Equate equation A and equation B and solve for g
therefore
The plans cost the same for 100 GB of data
Answer:
B. $79 + 0.1($79)
Step-by-step explanation:
Given that;
the shipping cost for an order = 1/10 multiply by the cost of the items bought;
i.e.
where
x = cost of items ordered for.
This implies that:
x + 0.1x
The objective is to determine the expression for the total cost of an order which is $79
x = 79
Then, the total cost of an order is
$79 + 0.1($79)