juneshella394 juneshella394

09-07-2022
Mathematics

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Sulin has some $2 and $5 notes. The value of the notes add up to $58. There are 15 more $2 notes than $5 notes. How many $2 notes does Sulin have?

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biffyboffboof biffyboffboof

09-07-2022

Answer:

t is number of 2 dollars

f is number of 5 dollars

2t+5f=58

f+15=t

2(f+15)+5f=58

simplify

2f+30+5f=58

simplify

7f+30=58

subtract

7f=28

f=4

substitute

4+15=t

4 five dollars

19 2 dollars

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