jan1829
02.12.2019 •
Mathematics
Acomputer and printer cost a total of $1028. the cost of the computer is three times the cost of the printer. find the cost of each item.
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Ответ:
Printer: $257, Computer: $771
Step-by-step explanation:
First you want to make a part to part diagram. It sounds stupid at first but trust me it works, We assume the both have the same amount. Now we draw 3 boxes for printer because it is 3 times as much. Now we have 4 boxes. divide 1028 by 4 and get 257. That is the amount for each box. You now know the printer is 257 dollars. Now multiply that by 3 to find cost of printer. 257x3=771.
Now you know the computer cost 771 dollars. You can check your work by adding them up. Hope this helped
Printer | []
Computer| [] [] []
Ответ:
144 p
Step-by-step explanation:
It was due to be returned on 26 November but she returned it on 12 December.
She was therefore with it for an extra 16 days.
The fine is 9p per day. Therefore, she will pay a fine of:
9 * 16 = 144 p