Answer:
no, he is not correct because if you must be at least 12, then the inequality should include 12
it should be written as:
a ≥ 12
Step-by-step explanation:
^
I suppose it would be 7x + 4y
Answer:
c = √85
c = 9.2
Step-by-step explanation:
a² + b² = c²
7² + 6² = c²
49 + 36 = c²
85 = c²
c = √85
c = 9.2
Yes, that like will divide the side in proportion
First, distribute (turning everything into a decimal at first to make more sense) : .4x - 3 + .6x = 4.25
Combine like terms : x - 3 = 4.25
Add 3 to both sides : x = 7.25
As a fraction : 7 1/4