L=w+2 and 2w+2l=44
substitute equation for length in perimeter equation
2w+2(w+2)=44
2w+2w+4=44
4w+4=44
4w=40
w=10
substitute width into length equation to get length
l=10+2
l=12
a=lw
a=12*10
a=120 cm^2
Answer:
3/4
Step-by-step explanation:
With regards to the above, since 1/4 of the volunteers are teenagers, the fraction of the volunteers would be
= 1 - 1/4
= 3/4
It therefore means that 3/4 of the volunteers are teenagers.
2nd answer.
any pts in the shaded region satisfies your simultaneous equation.
We know that the perimeter of a cylinder is 2πr we will find it as we do always. The perimeter will be :
2 pi r
= 2 pi * 20
= 40 pi
Because it says rounded to the nearest tenth the answer will be : 125.6 cm^3
Because we have a half of a cylinder we will just divide the answer we got by 2:
125.6cm^3 /2 =62.8
The answer is 62.8 cm^3
Step-by-step explanation:
- if you want to round off to the nearest tenth, you need to change the last unit. so it become to 2 720 130
