Answer:
Step-by-step explanation:
Hello,
(1) 2x + 4y + z = 3
(2) x - 2y - 3z = 4
(3) x + y - z = -1
From (3) we can write z = x + y + 1 and we replace in (1)
2x + 4y + x + y + 1 = 3 <=> 3x + 5y = 3-1 =2
(1') 3x + 5y = 2
and we replace in (2)
x - 2y -3(x+y+1) = 4 <=> -2x -5y -3 = 4 <=> -2x -5y = 4 + 3 = 7
(2') -2x - 5y = 7
(1') + (2') gives
3x - 2x + 5y - 5y = 2 + 7 = 9
x = 9
we replace in (1')
3*9 + 5y = 2 <=> 27 + 5y = 2 <=> 5y = 2-27 = -25 <=> y = -25/5 = -5
y = -5
and then in (3)
9 - 5 - z = -1 <=> 4 - z = -1 <=> z = 4 + 1 = 5
z = 5
hope this helps
Answer:
The total number of ways to select 9 women and 4 men for the committee is 50,050.
Step-by-step explanation:
The club has 13 female members and 8 male members.
The committee to be formed must have 9 female members and 4 male members.
The possible number of ways to select 9 female from 13 females is:
The possible number of ways to select 4 male from 8 males is:
Compute the possible total number of ways to select 9 women and 4 men for the committee as follows:
Total number of ways to select 9 women and 4 men = n (F) × n (M)
Thus, the total number of ways to select 9 women and 4 men for the committee is 50,050.
first make them into improper fractions 124/15 and 54/15 then subtract so it would be 70/15 then turn it into a mixed number 4 10/15
Answer: Tara's bedroom has a greater area.
Step-by-step explanation:
Area of a rectangle = width * length
Taras bedroom = 9 * 8 = 72
Jodys bedroom = 7 * 10 = 70
