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swaggg8300
06.04.2020 •
Mathematics
The equation y = 35.5 x can be used to determine the total cost of Lauren’s Internet service. The variable y represents the total cost as it depends on the number of months that she has the service, x. Lauren used the equation to fill in the table below.
Cost of Internet
Number of Months
Total Cost (in $)
3
106.50
6
213.00
9
12
426.00
What value is missing from the table?
Solved
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Ответ:
$319.50
see the procedure
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or ![y=kx](/tpl/images/0584/4939/7f524.png)
Let
y ---> represents the total cost
x ---> represents the number of months
we have
so
The relationship between x, and y, represent a proportional variation
Complete the table
For x=9 months
substitute the value of x in the linear equation and solve for y
Ответ:
6
Step-by-step explanation: 4/1 is 4 3 12 then 6 = 6