Answer:160% of 11.1 is 17.76
Step-by-step explanation:
(pi) = 7x - 2y....subtract 7x from both sides
(pi) - 7x = -2y...divide both sides by -2
((pi) - 7x) / -2 = y
Answer:
B. 195.5 kg
Step-by-step explanation:
Given
Weight in pounds = 430 pounds
1 kilogram = 2.2 pounds
Required
The weight in kilogram
Let x represents the weight of the humpback's whale's heart in kilogram
Such that;
By Cross multiplication

Divide both sides by 2.2lb





Approximate

Hence, the weight of the heart is 195.5kg
-3x+4=15
-3x=15-4
-3x=11
x= -11/3
4(-11/3)-y= -19
-44/3-y= -19
-y= -19+44/3 multiply by (-1)
y=19-44/3
y=19•3/3-44/3
y=57/3-44/3
y=13/3
(x,y)=(-11/3, 13/3)