bvallinab
24.06.2020 •
Mathematics
The graph shows the cost of a lunch in a school’s cafeteria since school started. A graph titled Cost of a Lunch in a School's Cafeteria has Days since school started on the x-axis and cost of lunch (dollars) on the y-axis. A horizontal line is at y = 2.5. Which is correct about the graph’s slope? Its slope is positive. Its slope is negative. Its slope is zero. It has no slope.
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Ответ:
Yes, in fact Bill exceeded his target by £2,200.
Step-by-step explanation:
Cost of the laptops = 50 x 400
= 20,000
Sold 40 at 30% profit
(40 x 400) x 1.30
= 20,800
Sold 10 at 15% profit
(15 x 400) x 1.15
= 6900
Total sales value
= 20800 + 6900 = 27,700