Urgent!!!!!! Someone can answer!! Pursue!! 10

1. He looked anxiously at the sky, then at me, and said, "He carried me away!"

2. Yulai shook his head and said that he was in the house and didn't see anything.

3. My mother told me that she would pick me up as soon as she got off work.

4. Teacher Wang said to the students, please take this exam seriously!

5. I told my brother that I would definitely help him get the kitten back.

6. Dad said to grandma, please take care of her old man!

21. Teacher Wang said to me, "I have a lot of confidence in you. ”

2. Dad said happily: "I can finally take a vacation!" ”

3. Grandma said to me, "Come back early from school, I'll take you to a big dinner!" ”

4. Grandpa said: "I suffered a lot when I was a child, and I also herded sheep for the landlord's family. ”

5. Mom said, "My brother is still young, you should let him." ”

6. Mom said, "I have to work overtime this afternoon, and I won't come to pick you up after school."

Solve the equation: Multiply both sides by 20 at the same time to get: 20x - 15 = 320 -1220x = 320 - 12 + 15

20x = 323

x = points given!!

30 30 (1-4 5)=180 574 (1-3 9)=861 17 20 meters (1-28 15) 4 3)=19 24 When the height is 50, the purchase price of the commodity is 318 3 2=212 yuan, and when it is 100 higher, the purchase price of the commodity is 318 2=159 yuan, and 212 120 = 159 120 = yuan, so it can be profitable between sales.

1.Let's say that the next day I read page x, x-30=4 5 x, solution x=15030+150=180 I read a total of 180 pages in two days.

2.Let the original price be x, according to the title, x-(3 9)x=574, solution x=861In the question, ** is reduced by 3/9, and ** is reduced by 861 times 3/9That's $287.

3.First, the area of the triangle = (base times height) divided by 2. If the height is h, the bottom edge length is 2h

Then the other two sides are (root number 2)h, the area formula of the circle s= r, r =2h is derived from the title, 5=(2h*h) 2=h. Substituting the formula, s= *r = *2h =.

Let the radius of the circle be r, and the height of the triangle is also r. From the formula of triangle area, s=1 2(2r*r)=5, i.e., r =5The formula for the area of a circle s= r , and the solution gives us, s=.

4.17/20, 20% off.

5.Let the length of this rope be l, and 2/3 l = 3, and solve l = m, minus 1/2, i.e. l 2 = m.

Page.

Yuan. 3. Square centimeters.

20, 20% off.

5, m 3

7. Yuan.

1.Let the number of pages read on the second day is, the first day is less than the second day to read 4 5, which means that only the second day is 1 5, x*1 5 = 30, the number of pages read on the second day is 30 1 5 = 150 pages, and 30 + 150 = 180 pages are read together in 2 days; Let the camera ** be x, x-(x*3 9)=574, x=861 yuan, because the question is how much the price has been reduced, so the price reduction = 861-574 = 287 yuan. The area of the right-angled isosceles triangle = 1 2 (bottom * height) = 5 square centimeters, set the bottom and height (circle radius) as x (the bottom of the right-angled isosceles triangle is the same length as the height, that is, the radius of the two circles of 1 cm in the figure, but the examination papers printed in your school are not standard, it seems not to be a right angle, so it looks weird, 2 isosceles right-angled triangles can be spelled into a square, the area of the square is long * wide, so the area of the isosceles right-angled triangle is the base * height 2, and the bottom is the same length as the height), So the area of an isosceles right triangle = x * x 2 = 5 square centimeters, the radius x = 10, and the area of the circle is r squared = square = square centimeters...

Is math so difficult for elementary school students now?

The right angle of Figure 2 is not in the center of the circle, so we must first find out what the diameter is, and set the bottom (diameter is 2x) so high (the radius is 2x 2=x, the radius is half the length of the diameter, this does not need to be explained) The area of the right triangle in Figure 2 = 2x * x 2 = 5 square centimeters, x = 5cm, the area of the circle is r squared = square = square centimeter All the order is 1 , 95% , 90% , 85% , 80% 85% of the fraction is 17 20 80% discount is 20% off should be expressed as it, First find the total length of the rope, set it to x, x-x*1 3=3 meters, x=meters, minus 1 2 meters = meters (4-28 15) 16 10+(4 3)=32 15*16 10+4 3=4 3+4 3=8 3 Let the cost ** be x yuan, if 318 is 50% of the higher purchase price**, then x*, x=212 yuan, 212 yuan * yuan, then this pair of shoes can be profitable at yuan-318 yuan; If 318 is 100% of the price of the higher purchase price, then x*2 = 318 yuan, the purchase price = 159 yuan, 20% higher profit**, then the shoes can be profitable between yuan and 318 yuan. Basically, you can make a profit between yuan and 318 yuan.

I'm a little confused. Because I'm still learning.