Answer:
a=1.5, b= 3
Step-by-step explanation:
sum of all sides will give us perimeter. Therefore
2a+b+6a+2b+1+4a=28
12a+3b+1=28
12a+3b=27....eqn1
since t two sides of this isosceles triangle are equal:
2a+b=4a
2a=b
![a=\frac{b}{2}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bb%7D%7B2%7D)
substituting ![\frac{b}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7B2%7D)
in the first equation whenever we encounter a we will have:
![12(\frac{b}{2})+3b=27\\](https://tex.z-dn.net/?f=12%28%5Cfrac%7Bb%7D%7B2%7D%29%2B3b%3D27%5C%5C)
6b+3b=27
9b=27
b=3
therefore ![a= \frac{b}{2} =\frac{3}{2} =1\frac{1}{2} or 1.5](https://tex.z-dn.net/?f=a%3D%20%5Cfrac%7Bb%7D%7B2%7D%20%3D%5Cfrac%7B3%7D%7B2%7D%20%3D1%5Cfrac%7B1%7D%7B2%7D%20%20or%201.5)
Answer:
x=−3 and y=1
i used substitution.
Step-by-step explanation:
Is it supposed to be john and daniel both are 1/2 of a cup? because then the answer would be 1 cup total
It is a square. It looks the same from 4 angles and has 4 lines of symmetry
Answer:
1571 m³
Step-by-step explanation:
Volume of the cylinder can be found using
V= πr²h
Given
diameter = 20m
Then
r= radius= Diameter/2= 20/2= 10 m
h= height =5m
If we substitute the values for " h and r" we have
V= π × 10^2 × 5
V= 1571 m³
Hence, the volume of a cylinder is 1571 m³