( 108—X)/2= 120+X
360-2X= 120+X
360- 120=X+2X
240 = 3 times
X=80
A: warehouse a delivered 80 tons to warehouse B.
The last question on page 5 of the first volume of the sixth grade of the Handbook of Primary School Mathematics Evaluation published by Jiangsu Education Publishing House.
The last question on page 15 of the sixth grade mathematics evaluation manual of Jiangsu Education Press, A and B cooperate to complete a job. Because of good cooperation, A's work efficiency increased by one tenth, B's work efficiency increased by one fifth, A and B cooperated for four hours and completed two fifths of all the work. The next day, B worked alone for another 4 hours, and there was still 13/30 unfinished. How many hours does it take to finish the work alone?
Solution: When Party B works alone for 4 hours1-2/5-13/30 = 3/5-13/30 =1/6.
Party B's work efficiency =( 1/6)/4== 1/24.
B One person needs to do it 1/( 1/24)=24 hours.
The work efficiency of B is improved 1/5, and then it is (1/24) x (1+1/5) =1/20.
The sum of the improved work efficiency of both parties = (2/5)/4 =110.
Then the improved work efficiency a =110-1/20 =1/20.
A original work efficiency = (1/20)/(1+110) =1/22.
A it takes one person to do it 1/( 1/22)=22 hours.
for reference only
The answer to the last question on page 2 1 of the sixth grade mathematics evaluation manual of Jiangsu Education Edition is that 2 times 2 times 2 times 2 equals the cube of 8.
8 divided by 4 divided by 5 equals 0.46 decimeter.
Su Jiaoban Primary School Mathematics Grade Six Volume I Page 33 1, Figure 1: Rectangular.
Surface area: 4*6*4+4*4*2= 128 (square centimeter)
Volume: 4*4*6=96 (cubic centimeter)
Figure 2: Square
Surface area: 4*4*6=96 (square centimeter)
Volume: 4*4*4=64 (cubic centimeter)
Figure 3: Rectangular
Surface area: 3*4*4+4*4*2=80 (square centimeter)
Volume: 4*4*3=48 (cubic centimeter)
2. The first question: 600 ml
Second question: 800-600=200 (ml)
3、7020 8.02 4500 4500 0.086 0.086
This is a 33-page answer (I made it myself), but I did it well by myself! *^_^*
How to do the last question on page 44 of the first volume of the fifth grade evaluation manual of primary school mathematics? 1089
The answer on page 6 1.62 of the first volume of sixth grade mathematics in Jiangsu Education Publishing House is 1, plus 1, plus 3, plus 9, plus 27, plus 8 1, so the last two numbers are 4 1 and 122 respectively.
2. Every two numbers are adjacent integers, and the first number in each group is added with 4,8, 12 respectively, so it is time to add 16, which is 4 1 42.
3. Add 5, 10, 15, 20 respectively, so it's time to add 25, which is 77.
4. The numbers of the first, third, fifth and seventh ... are 1, 2, 3 and 4 ... and the numbers of the second, fourth, sixth and eighth ... are continuous plus 3, so they should be 13.
Sorry, I still understand every time.
Refer to ZPFFIDY upstairs:
17-9 = 818-7 =1125-5 = 2019, so it is 16 (odd terms are irregular).
The answer to the last question on page 22, Unit 2, Mathematics Evaluation Manual for Sixth Grade Primary School of Jiangsu Education Publishing House (3x4+4x6+6x3)x2= 108 square decimeter (uncut surface area).
108+24= 132 square decimeter minimum (plus the surface area of the two minimum surfaces).
108+48= 156 square decimeter maximum (plus the surface area of the two largest surfaces).
(If you want to cut the largest face and the smallest face, you should increase the area of these two faces. )
Jiangsu Education Publishing House, Volume I, page 48, five questions, 5/4 times12/1=15/12/1times 50=6/25.
How to write the answer to the last question on page 55 of the sixth grade mathematics evaluation manual of Jiangsu Education Edition? You can search the textbook on the Internet and type "Page 55 of the sixth grade mathematics evaluation manual of Jiangsu Education Edition", which may be enough.
You can also type in the "Handbook of Mathematics Evaluation for Sixth Grade in Education Edition" page by page.
Go and have a try!
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