There are 56 students in class 61, of which three seventh are boys, and then several girls are transferred. At this time, girls account for three fifths of the class

There are 56 students in a three-year class in a primary school, of which girls account for three seventh of the class. How many boys are there

There are 56 students in a class, of whom, girls account for three seventh. How many more girls should be added to make up the whole class

Boys: 56 * (1-3 / 7) = 32 (people) unchanged
Female students: 56-32 = 24
Girls should make up half of the class, and there should be 32
Therefore, the number of female students should be increased: 32-24 = 8

Hangzhou is in the southeast of China

Hangzhou locates in the southeast of China
Please accept it in time~~~

30 degrees 35 minutes north, 121 degrees 5 minutes east
How to write the abbreviation?

N30°35',E121°5'

A sealed cuboid glass can is 30cm long, 18cm wide and 12cm high. How to test the depth of the water 901 when it is parked

Bottom area = 30 × 18 = 540 square cm;
Water depth = 90 × 1000 △ 540 = 1000 / 6 = 500 / 3cm ＞ 12cm;
So it has overflowed;
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If the least common multiple of a and B is 60, then C = 1___ ．

Decomposition factor a = 2 × 5 × C, B = 3 × 5 × C, so 2 × 3 × 5 × C = 60, then C = 2

The width of a rectangle is 2 decimeters, which is 1.8 decimeters longer than the length. How many square decimeters is the area of this rectangle?

Width: 2 + 1.8 = 3.8
Area: 3.8 * 2 = 7.6 (DM & sup2;)

Concern for composition

"Care" is an eternal topic. We all accept the care given by others. At the same time, we must have paid for someone around us. Our life is not independent, we all have parents, teachers, friends I'll take my father's care for example
Because my home is far away from the school, and there is no bus to the school, so the responsibility of sending me to school is given to my father, the backbone of the whole family. Since the beginning of school, my father has to get dressed every day and send me to school. When I get there, I don't have to have breakfast. Every time I go to pick up the goods, or deliver the goods by the way, But every meal is not enough, not because my family is poor, but because my father is too busy. My father often spends day after day like this
My father is not only concerned about my life, but also about my study. My math score has always been very poor. My father has made great efforts on my math score. Even if I make mistakes in math problems again and again, my father will teach me patiently again and again. He teaches me to understand the problems, and let me distinguish whether a number is greater than it or several times of it, So that I have a big breakthrough in mathematics
My father cares more about me than himself. Every time I touch his rough hand, my nose is a little sour. I know that my father does it for me. I will study hard and repay you with excellent grades - Dad

Safety as the topic of the composition of 1000 words fast ah

"Safety" -- an eternal topic, pursuing fashion and advocating fashion may be a kind of fashion. But once fashion becomes the mainstream of society, the beautiful things that exist in people's hearts will become a thing of the past and fade away

There are 56 students in class 61, of which three seventh are boys, and then several girls are transferred. At this time, girls account for three fifths of the class