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sbanoali6120
15.12.2019 •
Mathematics
Janice has five less than three times as many quarters as annie. together they have a total of 15.75. how many quarter doe janice has?
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Ответ:
The correct answer is that Janice has 46 quarters and Annie 17.
Step-by-step explanation:
1. Let's review the information provided to us to answer the question correctly:
Number of quarters Janice has = five less than three times as many quarters as Annie
Amount of money in quarters Annie and Janice have = US$ 15.75
2. How many quarter does Janice have?
For resolving this question, we have that:
x = Number of quarters Annie has
y = Number of quarters Janice has
System of equations:
0.25x + 0.25y = 15.75 (Amount of money in quarters Annie and Janice have)
y = 3x - 5 (five less than three times as many quarters as Annie)
Replacing y on the 1st equation:
0.25x + 0.25(3x - 5) = 15.75
0.25x + 0.75x - 1.25 = 15.75
x = 15.75 + 1.25
x = 17 ⇒ y = 3x - 5 = 51 - 5 = 46
The correct answer is that Janice has 46 quarters and Annie 17.
Ответ:
First you have to divide 11 by 8 (1.375) to get how long would the letter be if it was 1 inch wide. Then multiply 1.375 by 12 which is 16.5.