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24-07-2016
Mathematics

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Mariana had a $20 gift card to an online music store. She spent the entire amount on songs, which cost $1 each, and music videos, which cost $2 each. Mariana bought 5 more songs than music videos. Write and solve a system of equations to find the number of songs and the number of videos Mariana bought.

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wizkids wizkids

24-07-2016

there are 5 videos(=$10) and 10 songs (=$10)

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