72 is the denominator because 24 multiplied by 3 is 72 and 18 multiplied by 4 is 72
Percent decrease. 41%
percent change= (new-old)/old *100
= -41 % the negative means decreasing
Answer:
B. 0.83
Step-by-step explanation:
I calculated it logically
Answer:
a=223.57
c=181.43
Step-by-step explanation:
a=405-c
substitute for a in the equation :
12a+5c=3590
12(405-c)+5c=3590
4860-12c+5c=3590
-7c=3590-4860
-7c=-1270
c=1270/7=181.43
a=405-1270/7
a=1565/7=223.57
