Bao T.

asked • 01/28/24

Applications of Simultaneous Equations in Real-World Contexts

1. The giant pandas Kai Kai and Jia Jia reside at the River Safari. The sum of their ages when they first arrived in Singapore in 2013 was 11 years. In 2022, Kai Kai will be three times as old as Jia Jia was in 2013. Find their ages in 2014.

2. 6 adults and 4 senior citizens have to pay $228 while 13 adults and 7 senior citizens have to pay $459 to visit an exhibition at the ArtScience Museum. Find the total amount 2 adults and a senior citizen have to pay to visit the exhibition.

3. Lixin intends to buy either Gift A, which costs $10, or Gift B, which costs $8, as Christmas gifts for each of her parents, 2 siblings, 13 relatives and 10 friends. Given that she intends to spend $230, find the number of each gift she should buy.

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