Make an equation:
L = 4S - 3
Where 'L' is the amount of DVD's Leah has and 'S' is the aount of DVD's Sonia has.
Plug in 37 for 'L' and solve for 'S':
37 = 4S - 3
Add 3 to both sides:
40 = 4S
Divide 4 to both sides:
S = 10
So Sonia has 10 DVD's.
Answer:
d because its big
Step-by-step explanation:
When conducting a survey, it is critical that you choose a sample to represent the population you's conducting the survey for or about. It is extremely critical that this sample is neutral and unbiased to ensure that the results are trustworthy and can represent the whole population. That's why you use a random sample.
Answer:
<span>When conducting a survey, it is important to use a random sample because random sample provides an unbiased representative sample for the survey.</span>
The ration of white pair of socks and black pair of socks is 11:8 because Michael has already took one pair of the white socks so it's 11:8 between the two but to know the probability of one color you have to put it over the total amount of pair of socks so in total there are 19 now and 8 black pair of socks (were only looking for the probability of the black pair of socks and not the white)
8:19 is the ratio from black pair of socks to the total pairs of socks
You can also say 8/19 or 42% chance