Answer:
(x,y)=(0,-1)
Step-by-step explanation:
Observe that the equation 
can be transformed in the equation of a line
Since x can take any value then the equation has infinite solutions. But we need only an solution (x,y). Then, taking x=0 we have that 
.
Therefore the ordered pair (x,y)=(0,-1) is a solution of the equation.
Answer:
c. 5:6
Step-by-step explanation:
Answer:
20 20/27
Step-by-step explanation:
(2 2/3)(3 1/3)(2 1/3) = (8/3)(10/3)(7/3) = 560/27 = 20 20/27
_____
<em>Additional comment</em>
The first two numbers can be written as a difference and a sum:
= (3 -1/3)(3 +1/3)(2 1/3)
= (3·3 -1/3·3 +3·1/3 -1/3·1/3)(2 1/3)
= (9 -1/9)(2 +1/3) = 9·2 +9·1/3 -1/9·2 -1/9·1/3 = 18 +3 -6/27 -1/27
= 20 20/27
Answer:
4. -6, 5. 4, 6. 1 7. -2 8. -5 9. 6
What is the McDonald's math challenge
