Answer:
(5, - 4 )
Step-by-step explanation:
Given the 2 equations
2x + 3y = - 2 → (1)
3x - y = 19 → (2)
Multiplying (2) by 3 and adding to (1) will eliminate the y- term
9x - 3y = 57 → (3)
Add (1) and (3) term by term to eliminate y
(2x + 9x) + (3y - 3y) = (- 2 + 57), that is
11x = 55 ( divide both sides by 5 )
x = 5
Substitute x = 5 into either of the 2 equations and solve for y
Substituting into (1)
2(5) + 3y = - 2
10 + 3y = - 2 ( subtract 10 from both sides )
3y = - 12 ( divide both sides by 3 )
y = - 4
Solution is (5, - 4 )
Answer:
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Step-by-step explanation:
1/4 .....divide the pizza by 4 ...so you get 1/4 ...taken by each friend !
Answer:
The number of ways is 6435
Step-by-step explanation:
Given
Required
Number of ways a group of 8 can be formed
Here, I'll assume each category of people are distinct:
Hence;
Number of ways is then calculated as follows:
Where
So, we have:
<em>Hence, the number of ways is 6435</em>
