maths ? ? ? ? ? ? ………………………?

jess y: maths ? ? ? ? ? ? ………………………?
a rectangular garden 40m by 30m has a fence around it. if the fence posts are 5m apart how many posts are needed?

feature tiles on a wall are 30cm by 10cm. calculate the perimeter of the following tile designs ( there in a cross shape split in the middle of the t)

the volume of a container is 3750cm little 3 on top. when full how many liters of water will it contain

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Answers and Views:

Answer by sanjeewa
1). 28
2). i didn’t understand you
3). i didn’t understand you

Answer by salah h
p=2(L+W)
=2(40+30)
=140
posts=140/5=28

Answer by gally gal
1. 28 (40×30=120m divided by 5 =28)
2. i didn’t understand very well but i think 240cm
3. 3.75 L because 1cm³=1mL

hope that helped

Answer by Tom
40m x 30m
The perimeter is therefore (40 + 40 + 30 + 30) = 140m
140/5 = 28
Fence posts every 28m.

Answer by Jain
1.
Total perimeter of the garden=2(40+30)=2*70=140m
No. of posts = 140m/5m=28

2.
If I understand the question correctly, then it will form a right-angle triangle with two sides 30 cm & 10 cm. The third side i.e., its hypotenuse (c) can be calculated as under:
c^2=(30)^2+(10)^2
=900+100
=1000
c=sqrt(1000)=10sqrt(10)

Perimeter= 30+10+10sqrt(10) cm
=40+10sqrt(10) cm.

3.
When full the water would be equal to its volume
=3750 cm^3
=3.75 liters
(since 1000 cm^3 = 1 liter)

Answer by stoneystone
1. (40/5)x2 + (30/5)x2 – 4 = 24
*note that there will be overlapping of fence therefore there is a need to substract 4.

2. theres not diagram

3. 3750cm3 = 3750ml
= 3.75liters