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Math Questions 4 help!~
A shopkeeper raised the price of a table by 20%.Later he sold the table at discount of 20%.How did the selling price compare with the original price?Use an example to explain.
1 個解答數學1 十年前Math Questions 3 help!~
The area of a parallelogram is equal to the area of a triangle.The height of the triangle is 5 cm.If the two figures have the same base,find the height of the parallelogram.
Let the height of the parallelogram be H cm and their bases be B cm
1 個解答數學1 十年前方程式一問 8(詳列步驟)
Peter has 2x five dollar coins and x two dollar coins.
By adding one condition,find a possible value of x.
A. If the total amount of money is $________,then x=__________
B. If the number of coins is__________,then x=_________
1 個解答數學1 十年前Math Questions 2 help!~
1.If the sum of two consecutive even numbers is 86,find the two
numbers.
(The diference between two consecutive even numbers is 2)
Solution:Let the smaller number number be x.Then the larger numbers will be______.
X+_________=86
1 個解答數學1 十年前英文數學問題 7
1. Y is 9/25 of X.What percentage of X is Y?
Solotion: The required percentage=□ □%=□
2. In a bakery,250 cakes and 400 bread were sold yesterday. The number of cakes sold today is decreased by 10% and that of bread is increased by 15%. Find the total number of cakes and bread sold today.
3. The government plans to build a large housing estate in a new town.The estate will have twelve 36-storey buildings with 18 units on each floor.According to the Census,we can estimate the average number of inhabitants in each unit to be 2.43.Find the number of inhabitants this estate will have,round off the answer correct to the nearest ten thousand.
Solotion:Number of inhabitants
=□x□x□x□
=□
=□[correct to the nearest ten thousand]
1 個解答數學1 十年前英文數學問題 5
1. The HCF and LCM of two numbers are 6 and 108 respectively.If the two numbers are 12 and X ,find the X. (X is a multiple of 6 and factor of 108.)
2. There are two numbers.Neither of them is a multple of the other.Find two pairs of possible values of the numbers if their HCF is 16.
2 個解答數學1 十年前