Exercise No. 3
Answer: 1, 3, 2
1. Compute the values of x, y, and z.
2x + 5y + z = 19
x - y + 3z = 4
3x - 2y - 4z = -11
Answer: -i
2. Evaluate: i2043
Exercise No. 4
Answer: $40
1. An item originally priced at $80 is discounted by 50%. What is the discounted price?
Answer: 25%
2. If a product priced at $200 is offered at a discounted price of $150, what is the discount percentage?
Answer: $75
3. A store offers a 25% discount on a watch priced at $100. What will be the discounted price?
Answer: $48
4. A jacket with an original price of $80 is sold at a 40% discount. What is the discounted price?
Answer: 20%
5. A computer priced at $1000 is sold for $800 after a discount. What is the percentage discount offered?
Answer: $120
6. An item originally priced at $200 is discounted by 40%. What is the discounted price?
Answer: 15%
7. A shirt originally priced at $60 is sold for $51 after a discount. What is the discount percentage?
Answer: $24
8. A book originally priced at $60 is sold at a 40% discount. How much is discounted from the original price?
Answer: 75%
9. A product initially priced at $400 is sold for $100 after a discount. What is the percentage discount?
Answer: $90
10. A phone priced at $300 is offered at a 30% discount. How much money will be saved on the purchase?
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