There are 48 heads and 160 feet in the same cage. How many chickens and rabbits are there? Solve by equation

There are 48 heads and 160 feet in the same cage. How many chickens and rabbits are there? Solve by equation

Chicken has:
(48x4-160)÷(4-2)
=32÷2
=16 pieces
The rabbit has:
48-16 = 32
Equation method
If there are x rabbits, then there are (48-x) chickens
4x+2(48-2x)=160
4x+96-2x=160
4x-2x=160-96
2x=64
x=32
Then there are: 48-32 = 16 (chickens)

In a cage, there are several chickens and rabbits. After counting, there are 14 heads and 44 feet in total. Ask how many chickens and rabbits each have. Let X be a chicken, and get the equation ()
A. 2x+4（14-x）=44B. 4x+2（14-x）=44C. 4x+2（x-14）=44D. 2x+4（x-14）=44

Let X be a chicken, then the chicken has 2x feet and the rabbit has 4 (14-x) feet

1. The total edge length of a cube is 1.8 meters. What are its surface area and volume?
2. A cuboid reservoir needs to store water 2.4 meters deep. If 30 cubic meters of water are injected every minute and filled up in 40 minutes, what is the bottom area of the reservoir?
3. The edge length of the cube glass container is 2 mm. Pour 5 L of water into the container, and then put a stone into the water. At this time, the water depth of the container is 15 cm, and the volume of the stone is cubic centimeter?
4. Saw a 11.6-meter-long cuboid wood into two identical cuboids, and the surface area increased by 0.86 square decimeter. What was the original volume of the wood? (the number is kept as an integer)
PS: there is a picture in question 4, which is a cuboid cut vertically into two sides. Do you know what I mean?

1. The total edge length of a cube is 1.8 meters, what are its surface area and volume? 1.8 meters = 18 decimeters, 18 △ 12 = 1.5 (decimeters) surface area: 1.5 × 1.5 × 6 = 13.5 (square decimeters) volume: 1.5 × 1.5 × 1.5 = 3.375 (cubic decimeters) answer: the surface area of a cube is 13.5 square decimeters, body