Question

Each year a school has a concert of readings and songs. In 1999 the concert had 3 readings and 9 songs. It lasted 120 minutes. In 2000 the concert had 5 readings and 5 songs. It lasted 90 minutes. In 2001 the school plans to have 5 readings and 7 songs. Use simultaneous equations to estimate how long the concert will last. Call the time estimated for a reading x minutes, and the time estimated for a song y minutes.

Estimated time = ? minutes​

Answer 1

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