In ten years, the population of Detroit fell from 950,000 to about 712,500. Find the percent change.
1 answer:
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Answer:
The company sold 100 widgets and 250 gizmos.
Step-by-step explanation:
Let be the number of widgets sold and
be the number of gizmos sold.
We are told that the company sold 350 items. We can represent this information in an equation as:
We have been given that a each widget sold for $35 and each gizmo sold for $22. The company sold 350 items for a total of $9,000.
We can represent this information in an equation as:
From equation (1), we will get:
Substitute this value in equation (2):
Therefore, the company sold 100 widgets.
Substitute in equation (1):
Therefore, the company sold 250 gizmos.