3(x - 25) < $100. We're not req'd to solve this.
Answer:
1/12
Step-by-step explanation:
Since 1/4 drank fanta orange and 1/3 took coca cola, the. remainder will be:
= 1 - (1/4 + 1/3)
= 1 - 7/12
= 5/12
Therefore, 1/5 of the remainder drank sprite, the fraction that drank sprite will be:
= 1/5 × 5/12
= 1/12
Answer:
atleast 385
Step-by-step explanation:
Given that an electrical power company is looking to expand into a new market. Before they commit to supplying the new area with electricity, they would like know the mean daily power usage for homes there.
Population std deviation = 
Sample size =
STd error of sample mean = 
Margin of error for 95% would be Critical value ( std error)
Here since population std dev is known we can use Z critical value= 1.96

Sample size should be atleast 385
First let's rewrite it...
18a^2 + 20a + 8
Factor out a 2
2 (9a^2 + 10a + 4)