Answers to the second question on page 49 of the first volume of sixth grade of Jiangsu Education Press These are not the topics

Answers to the second question on page 49 of the first volume of sixth grade of Jiangsu Education Press These are not the topics

If class a donates a yuan, class B donates 144-a yuan
Class C donated (144-a) / (2 / 5) - a = 360-7 / 2A yuan
According to the meaning of the title
a=（144-a+360-7/2a）×2/3
3a=288-2a+720-7a
12a=1008
A = 84 yuan
Then class C donated 360-7 / 2 × 84 = 66 yuan

Jiangsu Education Press primary school sixth grade mathematics teacher student page 37-38 answers
Especially challenge yourself
Xiao Li's new living room is 4.5 meters wide, 3 meters less than 2 times the width. Xiao Li's father chose two kinds of floor tiles: 0.30 m × 0.30 m and 0.45 m × 0.45 M. the price of the former is 2.8 yuan per piece, and the price of the latter is 5.6 yuan per piece. (the cost of paving is 5.00 yuan per square meter) please calculate the cost of two kinds of floor tiles

5 times 2 minus 3 equals six meters, 6 times 4.5 equals 27, 0.3 times 0.3 equals 0.09, 27 divided by 0.09 equals 300 pieces, 300 times 2.8 equals 840, 27 times 5 equals 135135 plus 840 equals 975, answer the first specification of floor tiles to 975 yuan. 0.45 times 0.45 equals 0.2025, 27 divided by 0.2020 ≈ 134 pieces, 134 times 56 equals 750.4 yuan, 27 times 5 equals 135 yuan, 750.4 plus 135 equals 885.4 yuan

A cylinder, a cuboid and a cone. If their base area and volume are equal, then the height of the cylinder is equal___ The height of a cuboid and a cone is the height of a cylinder___ ．

Because the height of the cylinder = vs, the height of the cuboid = vs, the height of the cylinder with the same bottom area and volume is equal to the height of the cuboid; because the height of the cone = 3vs, the height of the cone is three times the height of the cylinder. Answer: the height of the cylinder is equal to the height of the cuboid, and the height of the cone is three times the height of the cuboid

How much m square is the square of 600cm

…… 100cm = 1m. So the square of 600cm equals 6m, which is 36 square meters

The progression of cm square and m square

1m = 100cm, 1m * 1m = 100cm * 100cm, so 1mm2 = 10000cmm2, that is 1cm2 = 0.0001m2

15 square cm = how many square meters

15 square cm = 0.0015 square meter

How many cm 2.20.4 square meter is equal to how many cubic decimeter 3.302
How many cm is 1.2.03
How many cubic decimeters is 2.20.4 square meters equal to
How many cubic decimeters does 3.3020 cubic centimeter equal
How much is 4.4500ml? How many cubic decimeters is l

1.2.03 equals 203cm
2.20.4 square meters equals 20400 cubic decimeters
3.3020 cubic centimeter is equal to 3.02 cubic decimeter
4.4500ml equals 4.5L equals 4.5 cubic decimeter
In the top right corner of my answer, click comment, and then you can choose satisfied, the problem has been solved perfectly

How many square kilometers is 1 square cm equal to

1cm = 0.1dm = 0.01M = 0.00001km
So 1 square centimeter = 0.00001 km * 0.00001 km = 0.000000000 1 square km

How many square meters is one meter

Meter is the unit of length, square meter is the unit of area

How many square meters is one meter

Meter is the measure of length, square meter is the measure of area, 1 square meter = 1 meter (length) x 1 meter (width)