Hello.
Time taken by 3 person to paint one wall=32÷4=8minstime taken by 1 person to paint one wall=8*3=24minstime taken by 1 person to paint 7 walls=24*7=168 minstime taken by 4 persons to paint 7 walls=168÷4=42mins
Answer= 42 minutes
Have a nice day
Answer:
7.7
Step-by-step explanation: We are trying to find side c or side AB
Using the law of sines formula,
a/sin a= b/sin b c/sin c we can solve for missing side.
We are given side BC or side a which is 11
We also are given angle A is 82 degrees
Angle C is 44 degrees also.
So let set up a proportion.
11/sin 82= x/sin 44
11/sin 82× sin 44=x
x= 7.7
Point of intersection is the solution of the system of equations.
Both of them intersect at point (-3,5)
So, (-3,5) is the solution of the system of equations.
OPTION B
