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標題:
Math(F.3)
發問:
1)The weight of father is greater than 3 times the weight of his son by 1 kg. If the weight of his son is x kg, then what is the weight of father?2)Dividing the sum of 3 times a number and 7 by 4 is 37. If the number is n, then( )=37. 3)Solve the equation a-(5a+7)=3-(3a+10)4)For two numbers, a and... 顯示更多 1)The weight of father is greater than 3 times the weight of his son by 1 kg. If the weight of his son is x kg, then what is the weight of father? 2)Dividing the sum of 3 times a number and 7 by 4 is 37. If the number is n, then( )=37. 3)Solve the equation a-(5a+7)=3-(3a+10) 4)For two numbers, a and b, the approximate values are x when they are rounded to the nearest integer. Therefore, the exact values of a and b lies between( )and( ).The difference between a and b lies between( )and( ). 5)Find the slope of the straight line passing through (-3,4)and(-3,-4).
最佳解答:
1. The father's weight = (3x + 1) kg 2. (3n + 7)/4 = 37 3. a-(5a+7)=3-(3a+10) a - 5a - 7 = 3 - 3a - 10 -a = 0 a = 0 4. a and b lie between x-1/2 and x+1/2 Difference between them lies between -1/2 and 1/2. 5. Slope = (-4-4) / (-3+3) = -8/0 = Undefined
Math(F.3)
發問:
1)The weight of father is greater than 3 times the weight of his son by 1 kg. If the weight of his son is x kg, then what is the weight of father?2)Dividing the sum of 3 times a number and 7 by 4 is 37. If the number is n, then( )=37. 3)Solve the equation a-(5a+7)=3-(3a+10)4)For two numbers, a and... 顯示更多 1)The weight of father is greater than 3 times the weight of his son by 1 kg. If the weight of his son is x kg, then what is the weight of father? 2)Dividing the sum of 3 times a number and 7 by 4 is 37. If the number is n, then( )=37. 3)Solve the equation a-(5a+7)=3-(3a+10) 4)For two numbers, a and b, the approximate values are x when they are rounded to the nearest integer. Therefore, the exact values of a and b lies between( )and( ).The difference between a and b lies between( )and( ). 5)Find the slope of the straight line passing through (-3,4)and(-3,-4).
最佳解答:
1. The father's weight = (3x + 1) kg 2. (3n + 7)/4 = 37 3. a-(5a+7)=3-(3a+10) a - 5a - 7 = 3 - 3a - 10 -a = 0 a = 0 4. a and b lie between x-1/2 and x+1/2 Difference between them lies between -1/2 and 1/2. 5. Slope = (-4-4) / (-3+3) = -8/0 = Undefined
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