Answer:
3.6
Step-by-step explanation:
-7a+1.6a=-19.44
-5.4a=-19.44
5.4a=19.44
a=19.44/5.4
a=3.6
320 times 0.14 = 44.8
So 45 people are over the age of 65
Answer:
I don't think this is a real math equation.
Step-by-step explanation:
Answer:
21x - 42, see below :)
Step-by-step explanation:
Hello!
We know that f(x) is equal to 3x - 6
We want to know what 7 * f(x) is so we should first substitute f(x) for 3x - 6
7 * f(x)
7(3x-6)
We use distributive property to open the parenthesis:
7 * 3x + 7 * -6
21x - 42
Answer:
x greater than or equal to 4