Answer:
Step-by-step explanation:
Let x be the brother's weight.
Then 2x-5 is Andy's weight.
x+(2x-5)=100
3x-5=100
3x=105
zero
double - is actually plus
Answer:
Diagram for success. ...
Know your properties and theorems. ...
Understand Euclid's postulates. ...
Learn the language of math. ...
Know your angles. ...
Know your triangles. ...
Figure out what you want and what you're given. ...
Now fill in the rest.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The surface area formula for pyramids is given by :
...(1)
We need to arrange the formula for l.
Take b to LHS,
So, the expression is for the slant height.
Idk.................................................................... sorry