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It is about two hours' bus ride from my school to the station
How far is it from your school to the station?
I'm glad to answer for you. Fightout will answer your questions
If you don't understand this question, you can ask,
About two hours ago?
When did you do this in Chinese?
When did you go to the toliet?
Xiaogang's age four years ago is equal to Xiaohong's age two years later. Xiaogang's age this year is three times that of Xiaohong's. how old is Xiaogang this year?
Nine years old. And that's the problem
It is known that the solution of the system of quadratic equations 3x + 5Y = 6,6x + 15y = 16 is the solution of the equation 3x + KY = 0. Try to find the value of K
3x+5y=6
6x+15y=16
It is necessary to solve this system of equations
x=2/3
y=3/5
∴3×2/3+k×3/5=0
k=-6/5
At the 2012 London Olympic Games, the Chinese sports delegation won 19 out of 49 gold medals, 27 out of 88 silver medals and 27 out of 88 bronze medals
What's the percentage of the total?
Sorry, I don't have much money. Please forgive me
Analysis:
The proportion of bronze medals in medals is 1-19 / 49-27 / 88 = 1317 / 4312
That's 1317 out of 4312
What do not understand can continue to ask, hope to adopt!
If real numbers x, y satisfy x2 + Y2 + xy = 1, then the maximum value of X + y is & nbsp; ()
A. 233B. -233C. 33D. -33
∵ real numbers x, y satisfy x2 + Y2 + xy = 1, that is, (x + y) 2 = 1 + XY. From XY ≤ (x + y) 24, we can get (x + y) 2 = 1 + XY ≤ 1 + (x + y) 24, the solution is (x + y) 2 ≤ 43, ∵ - 43 ≤ x + y ≤ 43, so the maximum value of & nbsp; X + y is 43 = 233, so we choose: a
The school holds the sports meeting, the third grade has a person to participate, the fifth grade participates in the number to compare
The school holds the sports meeting. There are a people in grade three. How many people in grade three?
100 branches! Or 150 points! I'll give you 175 points, all right!
The number of students in the third grade: a. the number of students in the fourth grade: A-2. The number of students in the fifth grade: a + 2
How much less is 4 times of 7 / 8 than 7 / 8 of 56? How much is the accumulated food of 3 / 8 of 64 and the reciprocal of 8
56*7/8-4*7/8=49-3.5=45.5
64*3/8*(1/8)=3
The average number of a, B and C is 6, and their ratio is one-half: one-third: five sixths. What are the numbers of a, B and C respectively?
1/2:2/3:5/6=3:4:5
6*3*3/(3+4+5)=4.5
6*3*4/(3+4+5)=6
6*3*5/(3+4+5)=7.5
When the analytic formula is integral, the value range of its independent variable -- when the analytic formula is fractional, the value range of its independent variable -- real number
When the analytic formula is quadratic radical, the value range of its independent variable————
When the analytic expression is integral, the value range of its independent variable is real number
When the analytic formula is a fraction, the value range of its independent variable is a real number whose denominator is not equal to 0
When the analytic formula is quadratic radical, the value range of its independent variable is determined by the number whose root is greater than or equal to 0
RELATED INFORMATIONS
- 1. My uncle is 42 years old. Xiaohong is one third of his uncle's age. Xiaogang is one-half of Xiaohong's age. How old are Xiaohong and Xiaogang this year
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