Answer:
1. 4.5 oz in each container. 2. 27 divided by 6 = ? 3. the unknow quantity is 4.5 because if you take 27oz and divide that six ways into the six containers you get 4.5 oz so it looks like this 27 * 6 = 4.5
Step-by-step explanation: just use that the * means divided by but there isn't a real one on my laptop hope this helps
Answer:
15
Step-by-step explanation:
Subtract 1.5r from both sides of the equation and you get ...
15 = r
You must rent 15 movies to spend the same amount at each store.
Answer:
yes in some cases
Step-by-step explanation:
Both the numerator and denominator are divisible by 4, meaning that when they are both divided by this number they wll be in their simplest form.
e.g. 8/4=2 and 20/4=5
Therefore the simplest form is 2/5
Answer:
Null hypothesis is rejected. Standard deviation is > 8 miles per hour
Step-by-step explanation:
σ [Population standard deviation] = 8 , s [sample standard deviation] = s
n [no of items] = 8
H0 [Null] : σ = 8 ; H1 [Alternate - Right Tail] : σ > 8
χ2 = (n - 1) . s^2 / σ^2
= 49 x (10.5)^2 / 82 = 5402.25 / 64
χ2 = 84.410
df [degree of freedom] = n -1 = 50 - 1 = 49
P value (χ^2 49 > 84.410) = 0.00125
p = 0.0013
p < α ie 0.05
So, H0 is rejected
Hence we state that standard deviation is > 8 miles per hpur
