Each lion has 1 head. The number of lion heads is L .
Each bird has 1 head. The number of bird heads is B.
The total number of heads of all species is (L + B) = 30
Each lion has 4 feet. The number of lion feet is 4L .
Each bird has 2 feet. The number of bird feet is 2B .
The total number of feet of all species is (4L + 2B) = 100
The system of linear equations is:
L + B = 30
4L + 2B = 100 .
Answer:
20 cards to his family
Step-by-step explanation:
60 * 1/3 = 60/3 = 20
Answer:
(- 1, - 8 )
Step-by-step explanation:
Under a counterclockwise rotation about the origin of 180°
a point (x, y ) → (- x, - y ) , thus
(1, 8 ) → (- 1, - 8 )
2 divided by 3 = .666
Multiply by 100 = 66.6
Round to nearest whole number = 67%
900 gallons because 300 is burned every hour so 300 x 3 hours is 900
