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ciel8809
13.12.2019 •
Mathematics
Ted has $6.80 in quarters and dimes.the number of dimes is 3 times the number of quarters. write a system of equations can be used to find q, the number of quarters, and d, the number of dimes,ted has?
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Ответ:
The system of Equations are![\left \{ {{0.25q+0.1d=6.80} \atop {d=3q}} \right.](/tpl/images/0417/7717/0d5d5.png)
Step-by-step explanation:
Given:
Let the number of dimes be d.
Also let the number of quarters be q.
Total Money = $6.80
Ted has $6.80 in quarters and dimes.
Hence the equation can be framed as;
Now also given:
The number of dimes is 3 times the number of quarters.
Hence above statement can be framed as;
Hence The system of Equations are![\left \{ {{0.25q+0.1d=6.80} \atop {d=3q}} \right.](/tpl/images/0417/7717/0d5d5.png)
Ответ:
6 pound - first one
14 - second one
$172.20 - third one