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Applying Percents
Percent equations, sales tax, & simple interest
Question | Answer |
---|---|
32 is what percent of 50? | Equation: 32=n(50); Answer: 64% |
65% of what number is 39? | Equation: 39=0.65(n) Answer: 60 |
Find 42% of 300. | Equation: n=300(0.42) Answer: 126 |
7% of 92 is what number? | Equation: n=92(0.07) Answer: 6.44 |
12% of what number is 108? | Equation: 108=0.12(n) Answer: 900 |
Find the total cost. A $25 backpack is purchased with a sales tax of 7%. | Equations: $25(.07)=sales tax sales tax + $25 = total cost Answer: $1.75 sales tax $26.75 total cost |
Find the discounted price. A $210 bicycle is being sold with a 15% discount. | Equations: $210(0.15)=discount $210-discount= final discounted price Answer: $31.50 discount $178.50 final discounted price |
Find the total cost. An $8000 car is purchased with a sales tax of 5%. | Equations: $8000(.05)=sales tax sales tax + $8000 = total cost Answer: $400 sales tax $8400 total cost |
Find the discounted price. A $6.25 journal is being sold with a 40% discount. | Equations: $6.25(0.40)=discount $6.25-discount= final discounted price Answer: $2.50 discount $3.75 final discounted price |
Find the simple interest earned on $475 at 5% for 2 years. | Equation: I=prt I=475x0.05x2 Answer: $47.50 |
Find the simple interest earned on $5000 at 10% for 3 years. | Equation: I=prt I=5000x0.10x3 Answer: $1500 |
Find the simple interest earned on $1800 at 4% for 2 years. | Equation: I=prt I=1800x0.04x2 Answer: $144 |
Find the simple interest earned on $3200 at 8% for 4 years. | Equation: I=prt I=3200x0.08x4 Answer: $1,024 |
Kaitlyn and Camilla each have money in savings accounts. Kaitlyn's principal is $400 with a rate of 3%, and Camilla's principal is $300 with a rate of 6%. Whose savings account will earn more interest after 1 year? | Kaitlyn's equation: 400x0.03x1=$12 Camilla's equation: 300x0.06x1=$18 Answer: Camilla's savings account will earn more interest in a year than Kaitlyn's; $6 more. |