Solve for the following problems involving Rational numbers. Attach a file of the picture of your solution or write it on a piece of paper, you may, MS Word for your solution. Thank you!
1. A pelican dives vertically from a height of 3.8 m above the water. It then catches a fish 2.3 m underwater. How long is the pelican’s dive?
2. A submarine was cruising at a depth of 153 m. It then rose at 4.5 m/min for 15 min. What was the submarine’s depth at the end of this rise?
3. Saida owned 125 shares of an oil company. One day, the value of each share dropped by $0.31. The next day, the value of each share rose by $0.18. What was the total change in the value of Saida’s shares?
4. The dressmaker had 5m of cloth. She used 1 1/4m for a skirt and 1 5/6m for the blouse. How much cloth was left?
5. The integers from 1 to 1000 are cut out from art papers. How many pieces of 8s are there?
6. How many bags of sugar can be made out of 25 1/2 kg of sugar if each bag should contain 3/4 kg of sugar?
7.One day in Beijing, the temperature went from -2ºC to 8ºC. Find the change in temperature.
8. When Steve woke up. His temperature was 102º F. Two hours later it was 3º lower. What was his temperature then?
9. A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is 200 feet below sea level. How deep was the diver 10 minutes ago?
10. Joe is playing a game with a regular die. If the number that turns up is even, he will gain 5 times the number that comes up. If it is odd, he will lose 10 times the number that comes up. He tosses a 3. Express the results as an integer.
11. Martha spent of her allowance on food and shopping. What fraction of her allowance had she left?
12. Sam had 120 teddy bears in his toy store. He sold of them at $12 each. How much did he receive?
13. Ethan is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes and chocolate on 1/2 of the remaining cupcakes. The rest will get vanilla frosting. How many cupcakes have vanilla frosting?
14. A pail holds 5.2 l of water. A bottle holds 3.9 l less water than the pail. What is the volume of water in the bottle?
15. Emilio's batting average in his first year playing baseball was 0.089. In his second year, he improved to an average of 0.29. His third year, he improved even more to an average of 0.329. What is Emilio's average over the three years?
1. A pelican dives vertically from a height of 3.8 m above the water. It then catches a fish 2.3 m underwater. How long is the pelican’s dive?
2. A submarine was cruising at a depth of 153 m. It then rose at 4.5 m/min for 15 min. What was the submarine’s depth at the end of this rise?
3. Saida owned 125 shares of an oil company. One day, the value of each share dropped by $0.31. The next day, the value of each share rose by $0.18. What was the total change in the value of Saida’s shares?
4. The dressmaker had 5m of cloth. She used 1 1/4m for a skirt and 1 5/6m for the blouse. How much cloth was left?
5. The integers from 1 to 1000 are cut out from art papers. How many pieces of 8s are there?
6. How many bags of sugar can be made out of 25 1/2 kg of sugar if each bag should contain 3/4 kg of sugar?
7.One day in Beijing, the temperature went from -2ºC to 8ºC. Find the change in temperature.
8. When Steve woke up. His temperature was 102º F. Two hours later it was 3º lower. What was his temperature then?
9. A deep-sea exploring ship is pulling up a diver at the rate of 25 feet per minute. The diver is 200 feet below sea level. How deep was the diver 10 minutes ago?
10. Joe is playing a game with a regular die. If the number that turns up is even, he will gain 5 times the number that comes up. If it is odd, he will lose 10 times the number that comes up. He tosses a 3. Express the results as an integer.
11. Martha spent of her allowance on food and shopping. What fraction of her allowance had she left?
12. Sam had 120 teddy bears in his toy store. He sold of them at $12 each. How much did he receive?
13. Ethan is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes and chocolate on 1/2 of the remaining cupcakes. The rest will get vanilla frosting. How many cupcakes have vanilla frosting?
14. A pail holds 5.2 l of water. A bottle holds 3.9 l less water than the pail. What is the volume of water in the bottle?
15. Emilio's batting average in his first year playing baseball was 0.089. In his second year, he improved to an average of 0.29. His third year, he improved even more to an average of 0.329. What is Emilio's average over the three years?
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Answer:
I don't know
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I'm so unbright