Suresh makes 100 bookmarks to sell to his classmates. Each bookmark costs him $0.73 to make. How much does it cost Suresh to make all 100 pieces? NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature twice per question. (1 point) Responses $7.30 $7.30 $0.07 $0.07 $73.00 $73.00 $730.00

Answer 1

To find the total cost for Suresh to make 100 bookmarks, we can multiply the cost per bookmark by the total number of bookmarks.

Cost per bookmark = $0.73
Number of bookmarks = 100

Total cost = Cost per bookmark × Number of bookmarks
Total cost = $0.73 × 100 = $73.00

So, the cost Suresh incurs to make all 100 bookmarks is $73.00.

Answer 2

Four swimmers competed in the 100-meter freestyle. Their times were 69.28 seconds, 74.5 seconds, 75.4 seconds, and 69.15 seconds. If the lowest number represents the person who came in first, what was the time of the person who came in second place? NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature twice per question. (1 point) Responses 69.15 seconds 69.15 seconds 75.4 seconds 75.4 seconds 69.28 seconds 69.28 seconds 74.5 seconds 74.5 seconds

Answer 3

To determine the second place swimmer's time, we need to look at the times of all four swimmers and identify the two lowest times.

The times are:

1. 69.28 seconds
2. 74.5 seconds
3. 75.4 seconds
4. 69.15 seconds

The lowest time (first place) is 69.15 seconds. The second lowest time (second place) is 69.28 seconds.

Therefore, the time of the person who came in second place is 69.28 seconds.

Answer 4

In 1900, there was an Olympic underwater swimming event. The score was calculated by giving two points for each second the swimmer stayed underwater, and one point for each meter that the swimmer traveled. Charles de Vendeville from France earned a gold medal by staying underwater 68.4 seconds while traveling 60.2 meters. How many points did Charles de Vendeville earn to place first? Express the answer to the nearest tenth of a point. NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature twice per question. (1 point) Responses 257.2 points 257.2 points 128.6 points 128.6 points 197.0 points 197.0 points 188.8 points

Answer 5

To calculate the total points earned by Charles de Vendeville, we need to consider both the points earned for the time he stayed underwater and the points earned for the distance he traveled.

1. Points from time underwater:
   Points for time = 2 points/second × seconds underwater
   Time = 68.4 seconds
   Points from time = 2 × 68.4 = 136.8 points

2. Points from distance traveled:
   Points for distance = 1 point/meter × meters traveled
   Distance = 60.2 meters
   Points from distance = 1 × 60.2 = 60.2 points

3. Total points:
   Total points = Points from time + Points from distance
   Total points = 136.8 + 60.2 = 197.0 points

Therefore, Charles de Vendeville earned 197.0 points.

Answer 6

Which situation results in a change that could be modeled by a positive number? NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature twice per question. (1 point) Responses a change in elevation from 632 feet to 312 feet a change in elevation from 632 feet to 312 feet a change in elevation from –12 feet to 123 feet a change in elevation from –12 feet to 123 feet a change in elevation from sea level to -87 feet a change in elevation from sea level to -87 feet a change in elevation from 492 feet to -783 feet

Answer 7

To determine which situation results in a change that could be modeled by a positive number, we can analyze the different changes in elevation in each response:

1. A change in elevation from 632 feet to 312 feet:
   Change = 312 - 632 = -320 feet (negative change).

2. A change in elevation from –12 feet to 123 feet:
   Change = 123 - (-12) = 123 + 12 = 135 feet (positive change).

3. A change in elevation from sea level to -87 feet:
   Change = -87 - 0 = -87 feet (negative change).

4. A change in elevation from 492 feet to -783 feet:
   Change = -783 - 492 = -1275 feet (negative change).

The only change that results in a positive number is the change in elevation from –12 feet to 123 feet, which results in a change of 135 feet.

Therefore, the correct response is a change in elevation from –12 feet to 123 feet.

Answer 8

Sebastian was in a hotel lobby and took the elevator up 8 floors to his room. Then he took the elevator down 5 floors to the parking garage. He described his movement with the expression below. 5+(−8) NOTE: There is a check answer button in the bottom right corner. Click this to check your answer before moving on to the next question. It will not tell you the correct answer, but it will tell you if the answer you selected is correct. You can use this feature twice per question. (1 point) Responses Sebastian should have started at zero before adding –8. Sebastian should have started at zero before adding –8. Sebastian should have used –5 and 8. Sebastian should have used –5 and 8. Sebastian should have used 0 and –8. Sebastian should have used 0 and –8. Sebastian should have switched the two addends and written −8+5−8+5.

Answer 9

To analyze Sebastian's movement:

1. He takes the elevator up 8 floors to his room. This can be represented as +8.
2. Then he takes the elevator down 5 floors to the parking garage. This can be represented as -5.

In terms of the expression he described, the expression 5 + (-8) does not accurately reflect the movement as described.

Instead, he could start from zero after going up 8 floors and combine both movements:

• Starting at 0 (ground level), going up +8 floors gives him a position of +8.
• Then, going down -5 floors would be represented as \( 8 - 5 \).

So, to represent the whole situation accurately:

• He could have used +8 for going up and -5 for going down.

The best response based on the provided options is: Sebastian should have used –5 and 8.

This reflects the correct representation of his movements.