bản dịch đây
Ex1: Một vé xe buýt một chiều có giá 25 USD. Một vé xe buýt hai chiều có giá 35 đô la. Một thủ quỹ thu được 560 USD hoàn toàn từ việc bán 20 vé. Làm thế nào nhiều one- cách xe buýt vé đã được bán?
Ex2: tổng của a, b và c là 14. Nếu 9a + 8b + 6c = 101, giá trị của 2a + b = c là gì?
At an exhibition, an adult entry ticket costs $4 while 2 child entry tickets cost $1. If 100 tickets were sold and a total of $120 was collected, how many children attended the exhibition?
A number m becomes a square number when 14 is subtracted from it.The sum of m and 19 is another square number.Find the value of m
three lines dissect a big triangle into four triangles and three quadrilaterals. the sum of the perimeters of the three quadrilateral is 25 cm, the sum of the perimeters of the four triangle is 20 cm. the perimeter of the big triangle is 19 cm. how big is the sum of the lengths of the three dissecting lines?
A beetle starts at correr A of a aquare ABCD. Each minute, the beetle moves along axactly one side of the squaer from one correr of the square to another correr. For exmple, in the first two minutes, the beetle could have one of 4 walks: ABA, ADA, ABC, ADC. How many walks can the beetle have from correr A to correr C in 10 minutes?
The first two terms of a sequence are 2 and 3. Each next tern thereafter is the sum of the nearestly previous two terms if their sum is not greather than 10, 0 otherwise. The 2014th term is ?
The first two terms of a sequence are 2 and 3. Each next tern thereafter is the sum of the nearestly previous two terms if their sum is not greather than 10, 0 otherwise. The 2014th term is ?
true or false
1, there is only one midpoint for any given line segment
2, if AB+BC=AD then B lies between A and D
3, if AB+BC=AC then B is the midpoint of AC
4, If C is the midpoint of AB then AC=BC
5, if B belongs to Ox, A belongs to Oy, Ox and Oy are opposite then O is the midpoint of AB
McVees sell chocolate snacks in packets of 6 whereas Jays sell the same type of snack in packets of 5. Mr Scrooge is running a conference and wants to provide exactly one snack per person at the coffee break. Can he do this if he has to provide for 58 people? If he has to provide N people, what is the largest value of N where he will not be able to avoid buying more snacks than are needed?
McVees sell chocolate snacks in packets of 6 whereas Jays sell the same type of snack in pckets of 5. Mr Scrooge is running a coference and wants to provide exactly one snack per person at the coffee break. Can he do this if he has to provide for 58 people? If he has to provide N people, what is the largest value of N where he will not be able to avoid buying more snacks than are needed?
