Step 1
Assign a letter to the cost of each product
Cost of hamburger = x
Cost of hotdog = y
Step 2
Write a formula identifying how much of each product you are purchasing, and the final cost.
2x + 3y = 19.05
Step 3
Substitute the cost of a hamburger into X
2 × (5.25) + 3y = 19. 05
Step 4
Rearrange for y (cost of hotdog)
10.5 + 3y = 19. 05
3y = 19.05 - 10.5
3y = 8.55
y = 8.55 / 3
y = 2.85
So the cost for 1 hotdog is $2.85
I hope this helped, If you have any questions, feel free to ask
Answer:
Standard deviation of the population is 2.4
Step-by-step explanation:
Finishing times of 6 participants in 200 meter dash has been given as 27, 28, 27, 25, 24, 31.
We have to calculate the standard deviation of the population formed by these timings.
Formula of standard deviation is
where = standard deviation
= mean of the data
n = number of scores in the sample
Mean of given data =
=
= 30
Now
= 2.236 ≈ 2.24
Therefore, standard deviation of the given data is 2.24
Step-by-step explanation:
Here is your answer in the attachment.
Hope it helps :)
Step-by-step explanation:
i think the answer is 10600