-
Anonymous users2024-02-06124 divided by seconds.
2 solutions: with x tons.
1-20%）x+21=x+10%
70%x+21=x
30%x=21
x = 703 (60 * 7-3 * 20) divided by (7-3) = 90 pages 425 * (1 + 4) = 125 people.
1200 divided by 10 = 120 kg.
Apple: 120*7=840 kg.
Banana 120 * 3 = 360 kg.
67-5 = 2 people.
42 2 = 21 people.
Male: 21*7=147.
Female: 21*5=105 people.
775 5*3=45 units.
-
Anonymous users2024-02-05Let the speed of B be x, then the speed of A is 3 5x, and the time for car B to reach place A is y, then x*y-3 5x*y=40 kilometers, and it is calculated that 2 5x*y=40, so xy=100 meters, therefore, 100-40=60 meters is the distance traveled by car A.
-
Anonymous users2024-02-04The ratio of the number A to the number B is 4:5, the number A is the number of B (4 5), the number B is the number of A (1 and 1 4 times or multiples), the number A is less than the number B (20)%, and the number B is more than the number A (25)%.
y=6x, which means that xy is proportional (pair).
If 9 8 A = 1 B = 1 6 C (except 0), then abc is a maximum (false) If you have not learned negative numbers, then the answer is (true).
If x 5 = y 6, then what is the ratio of xy (proportional) to the surface area of two squares is 4:9, then their volume ratio is (4:9) hour:day to find the ratio to the process.
24 hours a day.
-
Anonymous users2024-02-03The ratio of number A to number B is 4:5, number A is number B (4 5), number B is number A (5 4), number A is less than number B (20)%, number B is more than number A (25)%.
y=6x, which means that xy is proportional (
If 9 8 A = 1 B = 1 6 C (except 0), then the abc maximum is A (
If x 5 = y 6, then in what ratio (proportional) is xy The ratio of the surface area of the two cubes is 4:9, then their volume ratio is (8:9) hour:day to find the ratio to the process.
Hours: Day. Hours: Hours.
-
Anonymous users2024-02-024/5 5/4 20 25
y x=6 I don't understand the proportional 8:27
Day = Hour ::1152
-
Anonymous users2024-02-014 out of 5 5 out of 4 20 % 25% true or false proportional 16:81 =
-
Anonymous users2024-01-31Kettle. 3 schoolbag spring grandson.
Set, Xiao Bump let Liang bring x money Xiaosen Bureau, Xiao Jun brought Y money, schoolbag 3x by the title, kettle for 2x
Derived from the title:
xy-kettle = 20
x+y-bag = 8
xy-2x=20
x+y-3x=8
Subtract the formula on the left from the right:
x+y-2x-(x+y-3x)=20-8
x=16x+y-3×16=20
x+y=68
Xiaojun and Xiaoliang brought a total of 68 pieces.
1 If the height is xcm, the length is 3 4x, and the width is 1 3x the length and width is 5 12x 15 >>>More
Solution: The original plan was to produce x 10,000 packs of copy paper last year. >>>More
Solution: (1) If the mixed doubles is played x games, the men's and women's doubles will be played x+4 games, and the men's and women's singles will be played x+8 games. It is known from the meaning of the title. >>>More
Xiao Ming takes the bus to school, which takes 30 minutes each way. If he goes to school once a day and goes home once, how much time does he spend on the bus each week? >>>More
1.A rectangular open space, 500 decimeters long and 40 meters wide, reduced it to the original 1 100 drawn on the drawing, what is the area of the rectangle on the drawing? >>>More