It would most like be $43 with tax if I’m not mistaken
Answer:
x
=
6
,
1
Step-by-step explanation:
<span>If 10% of x is 20,
----------
</span><span>then x = 200.</span><span>what is 23% of x?
----------
23% = (23/100)*200 = 46</span>
Answer:
d. 20
Step-by-step explanation:
Standard deviation is 4.5
Margin error for the problem is 2 hours
Probability 95%, that means that the siginficance level α is 1 – p
α = 1 – 0.95 = 0.05
margin of error (ME) can be defined as follows
ME = Z(α/2) * standard deviation/ √n
Where n is the sample size
Z(0.05/2) = Z(0.025)
Using a z table Z = 1.96
Now, replacing in the equation and find n
2 = 1.96 * 4.5/ √n
2 = 8.82/√n
√n = 8.82/2
√n = 4.41
n = 4.41^2
n = 19.44 ≈ 20
The prime factorization of 10 is 2*5. No exponents required.