Hi can someone help me with a few maths problems please ? x?

Question

If anyone could help with these maths problems that would be great as i am really stuck heres the questions

a hardware shop sells lengths of heavy duty chain.1 metre of the chain weighs 4 4/5 kg. What will the weight be of a 3 1/4 metre chain be ?

A woodeen box weights 2 7/8 kg.It holds 6 large cartons of soap powder.Each carton weighs 3 3/4 kg.Calculate the total weight of the box and cartons

The area of this rectangle is 7 1/5 cm2.Its breadth is 2 1/4 cm.Calculate its length

Thanks if you answer these much appreciated

Answer 1

If one meter of chain weighs 4 4/5 kg then how much does 2 meters weigh?
4 4/5 kg * 2, right?
So logically, 3 1/4 metres will weigh 4 4/5 kg * 3 1/4 metres or 4 4/5 * 3 1/4.

The box weighs 2 7/8 kg.
Each carton weighs 3 3/4 kg, so together 6 cartons weigh 3 3/4 * 6.
To find the total weight, add the 2 7/8 to the total of (3 3/4 * 6)

Area = Length * Width
7 1/5 = X * 2 1/4 in which X represents length
7 1/5 / 2 1/4 = X

Now do the calculations. You just have to look at the information you already have, and compare it to what you already know. You know the formula for area, so you take the information you have and substitute it into the formula. Then using the proper operation, you can find the answer.

Answer 2

OK Let's see if we can help.

1
Weight equals 3 1/4 x 4 4/5 kilos so
3 1/4 = 13/4
4 4/5 = 24/5 so
13/4 x 24/5 = (13 x 24) / (4 x 5)
13 x 24 = 312
4 x 5 = 20
Weight = 312/20 = 15 12/20 or 15 3 /5 kilos

2
6 cartons weigh 6 x 3 3/4 kilos so
3 3/4 k = 15/4
15/4 x 6 = 90/4 =22 1/2 kilos (or 22 4/8k)
Box weighs 2 7/8 k so
22 4/8 + 2 7/8 = 25 3/8kilos

3
Area = length x breadth
Area = 7 1/5 square cm
Breadth is 2 1/4
length is 7 1/5 divided by 2 1/4
7 1/5 = 7 4/20 or 144/20
2 1/4 = 2 5/20 or 45/20
144/20 divided by 45/20 = 144/45 = 3 9/45 or 3 1/5 cm

Answer 3

a million) a - 5 = 3 a = 3 + 5 a = 8 2) d/6 = 4 d = 4 (6) d = 24 3) 5k -7 = 40 3 5k = 50 ok = 10 x : 6 = 4 : 8 x : 6 = a million : 2 x = 6 : 2 x = 3 9 :3 x 2 = 6 cans of focus are choose

Answer 4

well its 4800kg so divide by 4 =1200 so times 4800 by 3 =14400 then add 1200 = 16600g or 16 3/5Kg thats the anser

so 3750 times 6 = 22500 plus 2875 so 25375g

3 1/5cm is the length

there you go they should be right

Answer 5

The second person who answered if you aren't telling them the answer than apparently you don't know the answer. I am 14 and I don't get it. If you are that stuck and nobody can help you try going and ask the teacher for help. I have to do that when I am stuck.

Answer 6

If you are stuck with these simple questions you should seriously consider to give some attention to your teacher when he or she explains. These are basic questions intended for a 9 year old or younger.

Answer 7

I think you should use a calculator for this one.. try texa instruments.