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There are 10 red, yellow, blue and white balls each, mixed in a cassette, and at least one touch out______ In order to ensure that there are six balls in the same color
5 × 4 + 1, = 20 + 1, = 21 (pieces); a: at least 21 balls at a time can guarantee 6 balls of the same color
There are 20 balls of red, yellow, blue and green mixed in a cassette. At least () balls can be found at a time to ensure that there are two balls of different colors?
21
There are 10 red, yellow, blue and white balls each, mixed in a cassette, and at least one touch out______ In order to ensure that there are two balls of the same color
4 + 1 = 5; answer: at least 5 at a time, to ensure that there are 2 balls of the same color; so the answer is: 5
1、 A tree in front of the door
The front of my house is ten meters long
My father planted a line of trees
Alternate planting of poplar and willow
Plant poplar from the beginning
Plant one every two meters
Plant a few willows and poplars
Second son: 1 or 20, which one is bigger
Dad: the top 20, of course
Son: Well, I got the 20th place in the exam, isn't it bigger than the first place
Dad
Can you answer for Dad?
PS: I really don't know how to answer~
3、 The average score of English is 92 in three subjects, 95 in two subjects and 93 in English
1： Three poplars and two willows
2： No, because the number of the ranking is ordinal, so it is close to 0 on the positive half axis of the number axis!
3： (1) the total score of 92x3 is 279
(2) The total score of the two subjects is 190
(3) Using 279-190, the total score of English is 89
(4) 93x2 for English; the total score for Chinese is 186
(5) Using 279-186, the total math score is 93
(6) Using 279-89-93 to calculate the total score of Chinese is 97
How to do the fourth question on page 7 of mathematics paradise
Fill in the form according to the area
Name: Area: square kilometers; precision: ten thousand square kilometers; precision: hundred million square kilometers
Indian Ocean_____________ \x09
Pacific Ocean_____________ \x09 _________________________
Arctic Ocean_____________
Atlantic Ocean_____________
To be precise to ten thousand places means to place a decimal point after ten thousand places, to keep the number after ten thousand places, and to omit 0 at the end; similarly, to be precise to hundred million places means to place a decimal point after hundred million places, to keep the number, and to leave 0 at the end
So the answer is:
Indian Ocean
Pacific Ocean
Arctic Ocean
Atlantic Ocean
PEP happy upgrade page 16:
Do you know what the following stands for? Please help me
☆ ☆ ☆ ☆
+ 9 ☆ 0
———————— ☆=（ ）
7 ☆ 2 ☆
6
Answers to 2009 primary school sophomore Volume 2 mathematics fast paradise
Please write down the title!
It's my pleasure to be in the right place
Rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat, rat
What does it really mean? What does it mean by paradise?
Worthy of the name ()
Paradise ()
1. M í ng f ù Q í sh í
Explain that reputation or name corresponds to reality
It comes from the sixth volume of Lang Qian Ji Wen written by Chen Kangqi in Qing Dynasty: "the posthumous title given to him after death is" Gong "and" Yi ". Xun is worthy of the name."
Usage: subject predicate; as predicate and attribute; with commendatory meaning
2. Paradise: a place of happiness. An ideal place to express one's mind
"Happy land, happy land, so I have."
For a manuscript, it takes 6 hours for a to type it alone, and 10 hours for B to type it alone. Now, after a few hours of typing alone, it takes 7 hours for B to finish it because of something, so it's time for a to type______ Hours
The time of working alone is x hours, and the meaning of the article is: 16x + (7-x) × 110 = 1 & nbsp; & nbsp; & nbsp; & nbsp; 16x + (7-x) × 110 = 1 & nbsp; & nbsp; 16x (7-x) (7-x) × 110 = 1 & nbsp; from the meaning of the article: 16x + (7-x) × 110 = 1 (7-x) × 110 = 1 & nbsp; & nbsp; & nbsp; 16x + 710 + 710 + 710-110x = 1-110x = 1-110x = 1 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & & nbsp; & nbsp; & & nbsp; & nbsp; & nbsp; & & nbsp; & & nbsp; & & nbsp; & nbsp; & nbsp; & & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & & nbsp; & nbsp; & nbsp; & nbsp; & & nbsp; & & nbsp; & nbsp; & nbsp; & nbsp& nbsp; It takes 4.5 hours for a to type
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