Let us assume that cost of each granola bar be $x and that of a cup of yogurt be $y
From person A's purchase, we get
12x + 7y = 15.5; equation A
And from person B's purchase,
6x + 11y = 11.5; equation B
Let us multiply equation B by 2 and subtracting equation A from it, we will get
12x + 22y - 12x - 7y = 23 - 15.5,
=> 15y = 7.5
or, y = 0.5
Substituting value of y in equation A, we can find x
12x + 7*0.5 = 15.5
=> x = (15.5 - 3.5)/12
or, x = 1
Therefore, cost of granola bar is $1, and that of yogurt is $0.5
Answer: Loss percent = 0.775%
Step-by-step explanation:
Here,
Total cost = Purchasing price + transportation
⇒ Total cost = 6375 + 75
⇒ Total cost = $ 6450
Selling price = $ 6400
Total cost > Selling price, hence it is a loss.
Loss percent formula :

Hence, Loss percent = 0.775%
Answer:
732.76
Step-by-step explanation:
There are 28 desks and each is 26.17. The word "each" signifies multiplication. Formula - 26.17 x 28 or ; inches x desks
Hope this helps :)
Given:





To find:
The variance. of combined set.
Solution:
Formula for variance is
...(i)
Using (i), we get




Similarly,




Now, after combining both sets, we get




Therefore, the variance of combined set is 15.4.