Answer:
2 1/4
Step-by-step explanation:
-5 1/4- (-7 1/2)
to minus cancel each other out so it becomes a plus
-5 1/4 + 7 1/2
common dinomanater
-5 1/4 + 7 2/4
2 1/4
Answer:
x=8
Step-by-step explanation:
10x + 80 < y = 20x
subtract 80 from both sides
10x = 20x - 80
subtract 20 from both sides
-10x = -80
divide both sides by -10
8
Answer:

Step-by-step explanation:

Answer:
12.5% Potency
Step-by-step explanation:
8 x 3 = 24 hours in 1 day so 3 half lifes would progress in 24 hours.
100% Hour 0 Spray (Half Life 0)
50% Hour 8 Spray (Half Life 1)
25% Hour 16 Spray (Half Life 2)
12.5% Hour 24 Spray (Half Life 3)
Answer:
x is greater than or equal to -26
Step-by-step explanation:
We can use distributive property to solve the equation.
-6(x+4) in distributive property is: -6x-24
-6x-24 is less than or equal to -5x+2
+6x +6x
-24 is less than or equal to x+2
-2 -2
-26 is less than or equal to x
This means x is greater than or equal to -26
On the graph you would put a closed circle on -26 and point to the right.
Hope this helps! Good luck on your quiz!