Answer:
x
−
y
= −
11
Step-by-step explanation:
Area of one blade is
A=(1/2)b*h=(1/2)7*4=28/2=14
for four blades
14*4=56
Equation you asked: 4x +4y = 20, Rewritten equation: -1x + 5
hope this helps.
Answer:
i think its 21/x-4
Step-by-step explanation:
sorry if im wrong