The answers to the exercises after class in the three compulsory textbooks of Mathematics A of People's Education Press (B5 paper typesetting)
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The seventh grade, the second volume, Mathematics Scholar Education Edition
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The answers to the exercises after the compulsory course of senior high school mathematics by People's Education Press (from the teacher's book)
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People's Education Edition, the eighth review of mathematics, 18, the answers to all questions.
The answers in the math books p 108 3 to 9 3 of the seventh grade People's Education Edition. Solution: Set the clothing value to X silver coins.
(analysis: we can know that the monthly salary should be equal, so the formula:)
(x+ 10)÷ 12=(x+2)÷7
The solution is x=9.2.
According to the actual situation, it is worth about 9 silver coins.
These clothes are worth nine silver coins.
4. Solution: Let the purchase price be X yuan.
x×0.9 =( 1+0. 152)×250
The solution is x=320 (yuan)
A: The bid price is 320 yuan.
5. Solution: Each box contains X products.
(8x+4)÷5-( 1 1x+ 1)÷7 = 1
Solution:
X= 12 (piece)
A: Each box contains 12 products.
6. solution: suppose that after x hours, the speed of the two cars is equal.
30+20x=90- 10x
The solution is x=2(h)
Speed: 30+20×2=70 (km/h)
A: After 2 hours, the speed of the two cars is equal, and the speed of both cars is 70 km/h at this time.
7.( 1) Solution: Let the per capita quota be X blocks.
(4x+20)÷4=(6x-20)÷5
Solution:
X=45 (pieces)
A: The per capita quota is 45.
(2) Solution: Let the per capita quota be X blocks.
(4x+20)÷4-(6x-20)÷5=2
Solution:
X=35 (pieces)
A: The per capita quota is 35.
(3) Solution: Let the per capita quota be X blocks.
(6x-20)÷5-(4x+20)÷4=2
Solution:
X=55 (pieces)
A: The per capita quota is 55.
8.( 1) Solution: Let the starting speed be x km/h. ..
5x+5(x+20)+5(x+20- 10)= 1262
Solution:
X≈74 (km/h)
In the first 5 hours, the speed is 74 km/h;
5 hours in the middle, with a speed of 94 km/h;
The last five hours, the speed is 84 km/h.
(2) Within eight hours, the driving distance is:
5×74+3×94=652 km
About between Beijing and Shanghai.
According to the map, it should be between Jinan and Linyi.
9.( 1) Solution: Let the life of Diophantine be X.
( 1/6+ 1/ 12+ 1/7)x+5+ 1/2x+4 = x
X=84 (year)
A: The life span of Diophantine is 84 years.
(2) The life span of Diophantine's son is 84÷2=42 years.
So when Diophantu became a father, it was: 84-4-42=38 (years old).
A: When Diophantu was 38 years old, he began to be a father.
(3) When the son died, Diophantine: 84-4=80 (years old)
A: When my son died, Diophantu was 80 years old.
The seventh grade teaches the answers in the math book. Buy a math book with answers at the back.
All the answers in the sixth grade people's education edition math book? Although some topics are time-consuming, they can only improve their learning level in this way, communicate with teachers more, and can't get answers online.
Teachers are happy for students to ask questions. If there are too many questions, they will give a lot of advice on learning.
The answer to Exercise 24.3 in the ninth edition of the Mathematics Book of People's Education Press is kneeling. ~~! Urgent! ~ ~ there is no doubt.
20 16 people's education version of the answer to the math book, you can go to the learning tool to find the answer. If not, you can directly take photos and upload them to the Rubik's cube operation artifact, and Xueba will answer them!
Who has the answer to the second volume of the sixth grade mathematics book (PEP)? : pep../xxsx/xxsjs/xs6b/xs 6 bjc/ You should have a look at this website.
The answers to the exercises in the math book p 132~p 133 published by People's Education Press are fully interpreted by purchasing this textbook.
Teaching AIDS like this,
It has ~O(∩_∩)O on it.
Is there an answer to after-school questions in the math book? have