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Anonymous users2024-02-11Hello, I hope I can help you.
a*b=96, b*c=84, so a*b 2*c=96*84=8064, so b 2=8064 56=144, so b=plus or minus 12, should be b is a natural number, so b=12
Now we can find a=8 and c=7
Today is Chinese New Year's Eve, I wish you a happy new year!
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Anonymous users2024-02-10a=65b=The process is too troublesome to use a mobile phone: use the column equation to change the equation 1 to b=96 a) Thank you! Happy New Year....
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Anonymous users2024-02-09I am in the sixth grade, and after many calculations and checks, a=8
b=12c=7
If you can't do it, can you make up this number?
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Anonymous users2024-02-08Hello, I hope I can help you.
There are three natural numbers a, b, c, known a*b 96, b*c 84, a*c 56, find a, b, c respectively?
Answer: a*b=969(1).
b*c＝84(2)
a*c＝56(3)
1)*(2)*(3):a^2b^2c^2=451584a*b*c=674（3）
3）/（2）a=8
3）/（3）b=12
3）/（1）c=7
So a=8 b=12 c=7
Happy New Year to you!
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Anonymous users2024-02-071. The number of A is 5 less than the number of B, let the number of B be x, and the number of A is ( ) The sum of the numbers A and B is ( ).
2. A book has page A, Xiao Min reads page B every day, and after reading C days, there are still ( ) pages left.
3. The length of a rectangle is a meter, the width is 3 meters, its circumference is ( ) meters, and the area is ( ) square meters.
4. The multiplicative distributive law is represented by letters ( ).
5. Dad is m years old this year, n years older than his son, m-n means ( ).
6. If 3x+6=24, then 5x—7=( )
7. There are x girls in class five (1), 5 fewer than boys, there are ( ) boys, and there are ( ) people in the whole class.
8. There are three consecutive natural numbers, the first is b, the second is ( ) and the third is ( ).
9. A car travels S kilometers per hour and ( ) kilometers per hour;
It takes ( ) hours to travel 100 km.
2. Distinguish between the true and the false (the right one, the wrong one, and the wrong one, "10 points).
1. All equations are equations. （
2. x=3 is the solution of equation 8+2x=30. (
3. Decimals are pure cyclic decimals. (
4. Because 22=2 2, x2=x 2. （
5. The solution of equation 5 - and 5 = 3x - is the same. （
3. Discerning gold. (Put the number of the correct answer in parentheses) (10 points).
1. The equation containing ( ) is called an equation.
a, letter b, unknown number c, equal sign.
2. Among the following equations, the one that is not an equation is ( ).
a、7—x=5 b、 c、7（x+2）
3. The fruit store transported m kilograms of citrus, and the weight of the plums transported was more than 3 times that of citrus, and the weight of the plums transported in was ( ) kilograms.
a、m÷3+n b、3m+n c、3m—n
4. The solution of equation 3 (4+x)= is the same as ( ).
a、4╳（3+x）= b、2╳（4—x）= c、6╳（x—
5. Xiao Min is a year old this year, his father is 36 years old this year, and his father is older than Xiao Min in 20 years.
a、36—a+20 b、36—a c、20
4. Calculation questions. (30 minutes).
1. Solve equations. (12 points).
13+x= 4x+13=365
30x＋15x= 96÷6+4x=56 3x—2╳7=40
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Anonymous users2024-02-061.If Xiaoli meets the conditions when she is x years old, then (x-8) years later, then the mother's age is 36 + (x-8), 36 + (x-8) = 3x, and the solution is x = 14A: When Xiaoli was 14 years old, her mother was 3 times older than Xiaoli.
If x liters of gasoline are required for the liter, then x=65, and the solution is x=26
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Anonymous users2024-02-051.After x, the mother's age is exactly 3 times that of Xiaoli's age, 3 (8 + x) = 36 + x
Solution x=6
8 + 6 = 14 (years).
2. Prepare x liters of gasoline.
Solution: x=26
Give the bounty.
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Anonymous users2024-02-04(1): When Xiaoli is x years old, her mother's age is exactly 3 times that of Xiaoli's age 3x-2x=36-8
x=142): Assume x litres of petrol to be prepared.
x=26
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Anonymous users2024-02-03(1) Solution: Let the new year, the mother's age is three times that of Xiaoli 3 (8 + x) = 36 + x, x = 6 A....(2)65÷
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Anonymous users2024-02-02The height of the parallelogram = 96 12 = 8 meters.
1. If each Chinese cabbage covers an area of 16 square decimeters, how many trees can be planted?
96 square meters = 9600 square decimeters.
9600 16 = 600 trees.
2. What is the area of the radish field in square decimeters?
24-12) 8 2 100 = 4800 square decimeters.
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Anonymous users2024-02-011.96 square meters = 9600 square decimeters.
9600 16 = 600 trees.
96 2 = 48 (square meters).
48 square meters = 4800 square decimeters.
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Anonymous users2024-01-31Cabbage field 96 square meters = 9600 square decimeters.
9600 16 = 600 cabbage.
The parallelogram is equal on opposite sides, so the bottom edge is also 12 meters.
The area is 96 and the bottom is 12 and the height is 8 meters.
The length of the bottom edge of the triangle is 24-12=12 meters.
The area is 12 * 8 2 = 48 square meters, so the radish field is 48 square meters = 4800 square decimeters.
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Anonymous users2024-01-3096 square meters = 960 square decimeters.
960 16 = 60 (tree).
The second question is not high, sorry.
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Anonymous users2024-01-29square meters = 9600 square decimeters 9600 16 = 600 (trees) Answer: A total of 600 cabbages can be planted.
2.Height = Area Bottom 96 12 = 8 (m).
The area of the triangle = base * height 2 while the 2 bases of the parallelogram are the same so 24-12 = 12 (m) which is the base of the triangle.
12*8 2=48 (m) A: The area of the radish field is 48 square meters.
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Anonymous users2024-01-28square decimeter = square meter 96 trees).
2=48 (sqm).
Answer; A total of 600 Chinese cabbage plants can be grown, and the area of the radish field is 48 square meters.
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Anonymous users2024-01-271: 16 square decimeters = 96 trees per square meter).
2:96 (24-12)=8 (m) [24-12)*8] 2=48 (m²) 48 sqm = 4800 sq dm.
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Anonymous users2024-01-261.Wu Fan: 43 6 = Question minutes.
Chen Xing: 30 4 = question minutes.
Wang Jie: 38 5 = question minutes.
Therefore, Wang Jie's oral arithmetic speed is the fastest.
2.If the total number of people is x, then the reduction of 2 people is just divisible by 3 4 6, so x-2 is a common multiple of 3 4 6.
x-2=12k
20 so 20<12k+2<30
k=2x-2=24
x=26 so there are 26 people.
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Anonymous users2024-01-25The school orchard has 15 pear trees and 20 apple trees.
How many fractions of an apple tree is there than a pear tree?
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Anonymous users2024-01-241: Wu Fan has 430 points in 60 points, Chen Xing has 450 points in 60 points, Wang Jie has 456 points in 60 points, and Wang Jie is fast.
The common divisor is 12, so it should be 12 times 2 plus 2 equals 26 people.
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Anonymous users2024-01-23Wu Fan's oral arithmetic speed is fast.
The gymnastics team has a total of 25 members.
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Anonymous users2024-01-2243/6=7 +1/
It can be compared that Wu Fan has the least time for each question.
The performance team consists of 26 people.
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Anonymous users2024-01-21Wheat flour = 100* kg.
Sugar = 100* kg.
Salt = 100* kg.
Eggs = 100* kg.
Other = 100* kg.
1. Analysis: No cover means that there are only 5 sides.
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60*2 (book).
Zu Chongzhi's outstanding achievement in mathematics is about the calculation of pi Before the Qin and Han dynasties, people to"Trail three times a week"As pi, this is"Ancient rate"Later, it was found that the error of the paleorate was too large, and the pi should be"The circle diameter is more than three days", but how much is left, opinions differ Until the Three Kingdoms period, Liu Hui proposed a scientific method for calculating pi"Circumcision", use the circumference of the circle inscribed regular polygon to approximate the circumference of the circle Liu Hui calculates that the circle is inscribed with 96 polygons, and obtains =, and points out that the more sides of the inscribed regular polygon, the more accurate the value obtained Zu Chongzhi on the basis of the achievements of his predecessors, after hard work, repeated calculations, found In between and and obtained the approximate value in the form of fractions, taken as the approximate rate , taken as the dense rate, where the six decimal places are taken, it is the fraction of the closest value of the numerator denominator within 1000 What method did Zu Chongzhi use to get this result, Now there is no way to examine if it is assumed that he will press Liu Hui's"Circumcision"If you want to find this method, you have to calculate that the circle is connected with 16,384 polygons, which requires a lot of time and labor! It can be seen that his tenacious perseverance and intelligence in his scholarship are admirable Zu Chongzhi's calculation of the dense rate, it has been more than a thousand years since foreign mathematicians achieved the same result In order to commemorate Zu Chongzhi's outstanding contributions, some foreign historians of mathematics have suggested that = be called"Ancestral rate"． >>>More
1) Xiao Fang participated in a mathematics competition with four students, and the scores of the four students were 78 points, 91 points, 82 points, and 79 points, and Xiao Fang's scores were 6 points higher than the average score of the five students. Finding Xiaofang's math score? >>>More
The park should build a square flower bed and spread a 2-meter-wide lawn around the flower bed, the area of the lawn is 96 square meters, how many square meters is the total area of the flower bed and lawn? >>>More
Assuming that all 7 classes are in the third grade, 20 7 = 140 kg can be collected, and each additional class is the 4th grade, and 5 kg more can be collected. >>>More