X+.8=21.6 21.6/.8=x x=27 So, in conclusion, 80% of 27 is 21.6
Answer:
$36.00 in 4 hours
Step-by-step explanation:
Kind of obvious multiply $24 by 3 hours which gives $72 per 3 hours.
Multiply $36 and 4 hours which will give $144 per 4 hours.
Given that y varies inversely as x then:
y=k/x
where
k is the constant of proportionality given by:
k=yk
but
y=27 when x=2
thus
k=27×2=54
hence the function will be:
y=54x
The value of x when y is 9 will be:
9=54x
thus
x=9/54
x=1/6
I want to say that your answer is D
Answer: Choice A) -3
Work Shown:
Which leads us to choice A. In the second step, I used the rule that is equivalent to . For each equation, the b is the base. Note how logs undo exponents and vice versa.