Answer:
You can't add those two matrices as they do not have the same dimensions
Step-by-step explanation:
This also relates to subtraction as well (you need to have same dimensions)
So first y = 3.50 + 15 = 18.5
Next 2x + y = -1.5
2x = -1.5 -y
2x = -1.5 - 18.5 = -20
x = -20/2 = -10
So
x = -10
y = 18.5
B,c,c,a those are the answers :))
Answer:
$13.38
Step-by-step explanation:
tax =7% x 12.50 = 7/100 x 12.5 = $0.875
Price to pay = $12.50 + $0.875 = $13.375 = $13.38
- 5 1/4 - (- 7 1/2) =
- 21/4 + 15/2 =
-21/4 + 30/4 =
9/4 or 2 1/4 <==