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Explanation The given expression involves addition and subtraction of positive and negative numbers. When we simplify the expression, we first evaluate the negative sign inside the parentheses, which gives us -5+4+3+6. Then we perform the addition and subtraction from left to right, which gives us 8. Therefore, the correct answer is 8.
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2.
-11+2-(-5)+9=?
Explanation The given expression can be simplified by applying the rules of addition and subtraction. Starting from left to right, we have -11 + 2 which equals -9. Then, we have -(-5) which can be rewritten as +5, resulting in -9 + 5. Finally, adding 9 to -9 + 5 gives us a final answer of 5.
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3.
-1+2-8-9=?
Explanation The given expression is -1 + 2 - 8 - 9. When we evaluate this expression, we start from left to right, performing addition and subtraction operations. -1 + 2 equals 1, and then subtracting 8 gives us -7. Finally, subtracting 9 from -7 results in -16. Therefore, the correct answer is -16.
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4.
The Tunnel of Fear ride climbs straight up to its peak 60 meters above the ground. Then, it drops 75 meters into an underground tunnel.What is the elevation of the tunnel relative to the ground?
Explanation The elevation of the tunnel relative to the ground is -15 meters. This means that the tunnel is 15 meters below ground level.
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5.
The Tunnel of Fear ride climbs straight up to its peak 40 meters above the ground. Then, it drops 75 meters into an underground tunnel.What is the elevation of the tunnel relative to the ground?
Explanation The elevation of the tunnel relative to the ground is -35 meters. This means that the tunnel is 35 meters below the ground level.
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6.
Jim's bank account balance at the beginning of July was $13.00. The table below shows all of his account activity during July.Date Item Change in account valueJuly 5 Payment to .99 store -$12.50July 8 Bank overdraft fee $-5.00July 10 Bank deposit $10.00What is Jim's current bank account balance?
Explanation Jim's bank account balance at the beginning of July was $13.00. He made a payment of $12.50 to the .99 store on July 5, which reduced his account balance to $0.50. Then, on July 8, he was charged a bank overdraft fee of $5.00, resulting in a negative account balance of -$4.50. However, on July 10, he made a bank deposit of $10.00, which brought his account balance back to $5.50. Therefore, Jim's current bank account balance is $5.50.
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7.
In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.Jim's team skipped 6 turns. They guessed correctly 4 times.What was Jim's team's score?
Explanation Jim's team skipped 6 turns, which means they lost 6 points. They also guessed correctly 4 times, earning them 4 points. Since each skipped turn results in a loss of 1 point and each correct guess earns them 1 point, the team's score can be calculated by subtracting the number of skipped turns from the number of correct guesses (-2 = 4 - 6). Therefore, Jim's team's score is -2.
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8.
In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.Jim's team skipped 9 turns. They guessed correctly 10 times.What was Jim's team's score?
Explanation Jim's team skipped 9 turns, which means they lost 9 points. They also guessed correctly 10 times, which means they earned 10 points. Therefore, their total score would be 10 - 9 = 1 point.
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9.
In the game Kazoo, teams lose one point each time they skip a turn. They earn one point each time their team guesses correctly.Jim's team skipped 6 turns. They guessed correctly 4 times.What was Jim's team's score?
Explanation Jim's team loses one point each time they skip a turn, so since they skipped 6 turns, they would lose 6 points. They also earn one point each time they guess correctly, so since they guessed correctly 4 times, they would earn 4 points. Therefore, their total score would be -2 points (-6 + 4 = -2).
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10.
A dolphin is swimming with her friend. The dolphin jumps to a height of 3.5 meters above the surface of the water as her friend swims 8.8 meters directly below her.What is the position of the dolphin's friend relative to the surface of the water?
Explanation The position of the dolphin's friend relative to the surface of the water is 5.3 meters below the surface.
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11.
A dolphin is swimming with her friend. The dolphin jumps to a height of 2.5 meters above the surface of the water as her friend swims 8.8 meters directly below her.What is the position of the dolphin's friend relative to the surface of the water?
Explanation The position of the dolphin's friend relative to the surface of the water is 6.3 meters below the surface.
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12.
The student council at San Clemente High School is planning a school dance. The table below shows the budget for the dance.ItemFunds raisedExpensesTickets$200 Music $200Snacks $150What is the student council's expected profit?There is no need to include a $ with your answer. Please just enter the value.
Explanation The student council's expected profit is -150. This means that they will have a loss of $150 from the school dance. The expenses for tickets, music, and snacks add up to $550, while the funds raised are only $200. Therefore, the council will have a deficit of $150.
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13.
The student council at San Clemente High School is planning a school dance. The table below shows the budget for the dance.ItemFunds raisedExpensesTickets$200 Music $200Snacks $150What is the student council's expected profit?There is no need to include a $ with your answer. Please just enter the value.
Explanation The student council's expected profit is -150. This means that they are projected to have a loss of $150. This can be calculated by subtracting the total expenses ($200 for tickets + $200 for music + $150 for snacks) from the total funds raised. Since the expenses exceed the funds raised, the student council will have a negative profit.
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14.
The student council at San Clemente High School is planning a school dance. The table below shows the budget for the dance.ItemFunds raisedExpensesTickets$450 Music $200Snacks $150What is the student council's expected profit?There is no need to include a $ with your answer. Please just enter the value.
Explanation The student council's expected profit can be calculated by subtracting the total expenses from the total funds raised. In this case, the total expenses are $450 + $200 + $150 = $800. The total funds raised are $450 + $200 + $150 = $800. Therefore, the expected profit is $800 - $800 = $0.
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