Answer:
x = 
Step-by-step explanation:
Given
x +
= 
Multiply through by 80 ( the LCM of 20 and 16 ) to clear the fractions
80x + 36 = 45 ( subtract 36 from both sides )
80x = 9 ( divide both sides by 80 )
x = 
Answer:
80
Step-by-step explanation:
divide the circumference (251.2) by pi (3.14) and get 80
Answer:
3884.4 is what percent of 46.8 is 8300
4a) -5;
-4x+5=25
-4x=20
X=-5
4b) No;
-4(0)+5=5
4c) Yes;
-4(-7)+5=33