Airplane Allocation An airline has 30 airplane in Los Angeles, 12 airplanes in St. Louis, and 8 airplanes in Dallas. During an eight-hour period, 20 % of the planes in Los Angeles fly to St. Louis and 10 % fly to Dallas. Of the planes in St. Louis, 25 % fly to Los Angeles and 50 % fly to Dallas. Of the planes in Dallas, 12.5 % fly to Los Angeles and 50 % fly to St. Louis . How many planes are in each city after 8 hours?
Airplane Allocation An airline has 30 airplane in Los Angeles, 12 airplanes in St. Louis, and 8 airplanes in Dallas. During an eight-hour period, 20 % of the planes in Los Angeles fly to St. Louis and 10 % fly to Dallas. Of the planes in St. Louis, 25 % fly to Los Angeles and 50 % fly to Dallas. Of the planes in Dallas, 12.5 % fly to Los Angeles and 50 % fly to St. Louis . How many planes are in each city after 8 hours?
Solution Summary: The author calculates the number of airplanes in Los Angeles, St. Louis, and Dallas, based on the given information.
Airplane Allocation An airline has
30
airplane in Los Angeles,
12
airplanes in St. Louis, and
8
airplanes in Dallas. During an eight-hour period,
20
%
of the planes in Los Angeles fly to St. Louis and
10
%
fly to Dallas. Of the planes in St. Louis,
25
%
fly to Los Angeles and
50
%
fly to Dallas. Of the planes in Dallas,
12.5
%
fly to Los Angeles and
50
%
fly to St. Louis . How many planes are in each city after
8
hours?
Solve the linear system of equations attached using Gaussian elimination (not Gauss-Jordan) and back subsitution.
Remember that:
A matrix is in row echelon form if
Any row that consists only of zeros is at the bottom of the matrix.
The first non-zero entry in each other row is 1. This entry is called aleading 1.
The leading 1 of each row, after the first row, lies to the right of the leading 1 of the previous row.
PRIMERA EVALUACIÓN SUMATIVA
10. Determina la medida de los ángulos in-
teriores coloreados en cada poligono.
⚫ Octágono regular
A
11. Calcula es número de lados qu
poligono regular, si la medida
quiera de sus ángulos internos
• a=156°
A= (-2x+80
2
156 180-
360
0 = 24-360
360=24°
• a = 162°
1620-180-360
6=18-360
360=19
2=360=
18
12. Calcula las medida
ternos del cuadrilá
B
X+5
x+10
A
X+X+
Sx+6
5x=3
x=30
0
лаб
• Cuadrilátero
120°
110°
• α = 166° 40'
200=180-360
0 =
26-360
360=20
ひ=360
20
18 J
60°
⚫a=169° 42' 51.43"
169.4143180-340
0 = 10.29 54-360
360 10.2857
2=360
10.2857
@Sa
Please help I'm a working mom trying to help my son last minute (6th grader)! Need help with the blank ones and check the ones he got with full calculation so we can use it to study! Especially the mixed number fractions cause I'm rusty. Thanks in advance!
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