Answer: <em>$3.83 per package</em>
Step-by-step explanation:
<em>Simply you need to use division</em>
<em>Divide 11.49 by 3</em>
<em>11.49/3</em>
<em>To which you will get</em>
<em>$3.83</em>
Let A represent the speed of car A. Using your formula,
.. A*2 = D
.. (A +15)*1.5 = D . . . . . the same distance in a shorter time at a higher speed
Equating the two expressions for D, we get
.. 2A = 1.5(A +15)
.. 2A = 1.5A +22.5 . . . . . eliminate parentheses
.. 0.5A = 22.5 . . . . . . . . .subtract 1.5A
.. A = 22.5/0.5 = 45 . . . .divide by 0.5
Car B was 15 mph faster than this.
Car B traveled at 60 miles per hour.
Answer:
Standard error = 0.34
t-statistic = 11.18
Step-by-step explanation:
Given Data:
Mean difference d = 3.8
Standard deviation S.D = 1.36
Number of people = 16
The appropriate test are:
1. Standard error
2. T- statistic
1. Calculating the standard error using the formula;
Standard error = S.D/√n
= 1.36/√16
= 1.36/4
= 0.34
2. Calculating the t-statistic using the formula;
t-statistic = d/(S.D/√n)
= 3.8/(1.36/√16)
= 3.8/(1.36/4)
= 3.8/0.34
= 11.18
Answer:
2^3 x 31
Step-by-step explanation:
31 is a prime number
Answer:
A
Step-by-step explanation:
The gym membership is going to cost 40 initially plus 22.50 for each month after.
The total cost for the gym can be expressed as 40+22.50m
The martial arts class is going to cost 26 initially plus 16 for each month after.
The total cost for the martial arts class can be expressed as 26+16m
Now we have to combine these to get the total cost for both the gym and the martial arts class:
(40+22.50m) + (26+16m) = 66 + 38.50m (option A)
