Linear equation with a negative rate of change because the balance would decrease by the same amount each day.
4 is the whole number equivalent. When dealing with an improper fraction or one that is "top heavy" you take the denominater (the bottom number) unto the numerator.
Two(2)goes into 8, 4 times, making it whole!
X= -4y let this be equation 1
x+5y=2 let this be equation 2
substitute equation 1 in 2
-4y + 5y = 2
y=2
substitute the value of y in equation 1
x= -4y
x= -4(2)
x= -8
Answer 3 3/14
(7/8) times (45/14)= 45/16. Got 45/16 from 2 13/16
The error would be assuming the altitude is a bisector and divides the sides evenly.
