howardc1433
13.01.2021 •
Mathematics
Jean Valjean is buying candlesticks and plates for his new French restaurant. He has $60 to spend on plates and candlesticks. Each plate costs $3. Each candlestick costs $6 (it comes with free candles!). Jean needs to buy a total of 15 items. How many plates and how many candlesticks does he buy? Enter the answer as an ordered pair (number of plates, number of candlesticks)
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Ответ:
(10, 5)
Step-by-step explanation:
Total money to spend = $60
Cost of each plate = $3
Cost of each candlestick = $6
Let number of plates bought =
Let number of candlesticks bought =
Total number of items to be bought = 15
Therefore, the first equation can be written as:
..... (1)
Total money spent on plates = Number of plates bought Cost of each plate = $3
Total money spent on candlesticks = Number of candlesticks bought Cost of each candlestick = $6
Second equation can be written as:
Dividing both sides with 3:
..... (2)
Subtracting (1) from (2):
From equation (1) :
Number of plates bought = 10
Number of candlesticks bought = 5
Answer as ordered pair is: (10, 5)
Ответ:
no one open a chat room for that
Step-by-step explanation: