A conditional statement is always true backwards and forwards
For it to be a solution, it has to satisfy both inequalities...
subbing in (-4,-1)
2x + y < -5 -x + y > 0
2(-4) - 1 < - 5 -(-4) - 1 > 0
-8 - 1 < -5 4 - 1 > 0
-9 < -5.....true 3 > 0....true
solution is (-4,-1)
Answer:
x= -4/11
Step-by-step explanation:
first add 7x to both sides of the equation leaving you with 4.4x + 7.6 = 6
then subtract 7.6 from both sides which gets you 4.4x = -1.6
divide both sides by 4.4 and simplify
x= -4/11
You can use -4, -3, 0, 1, and 4. she would climb 8 flights.
