Well first you have to figure out what you need to solve. then you write out the two equations and solve the system s from there
Answer: no because 13(6+y) is 78+ 13y
Step-by-step explanation:
Answer:
The base reduces at 3.75cm/min
Step-by-step explanation:
Given
Let



So:


The area of a triangle is:

Calculate b when 



Solve for b


We have:

Differentiate with respect to time

Substitute the following values in the above equation


Multiply both sides by 2


Collect like terms


Divide both sides by 8


2x+5x+67.3=180
7x=112.7
X=16.1
16.1 times 5
80.5