Which is more economical: purchasing the economy size of a detergent at 7 kilograms for $7.15 or purchasing the regular size a
t 920 grams for 60cents?
Select the correct choice below and fill in the answer box to complete your choice.
(Round to four decimal places as needed.)
A.
Purchasing the economy size is more economical because the economy size costs $
____ less per gram.
B.
Purchasing the regular size is more economical because the regular size costs $
_____ less per gram.
Select the correct choice below and fill in the answer box to complete your choice.
(Round to four decimal places as needed.)
A.
Purchasing the economy size is more economical because the economy size costs $
____ less per gram.
B.
Purchasing the regular size is more economical because the regular size costs $
_____ less per gram.
1 answer:
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Answer: THE GRAPH IS ATTACHED.
Step-by-step explanation:
We know that the lines are:
Solving for "y" from the first line, we get:
In order to graph them, we can find the x-intercepts and the y-intercepts.
For the line the x-intercepts is:
And the y-intercept is:
For the line the x-intercepts is:
And the y-intercept is:
Now we can graph both lines, as you can observe in the image attached (The symbols and
indicates that the lines must be dashed).
By definition, the solution is the intersection region of all the solutions in the system of inequalities.
