Answer:
The total value of her stock after three days = $ 2796.3
Step-by-step explanation:
Total number of shares = 117
Total value of shares = $ 2614.95
Value of increase of one share in one day = $ 1.01
Total value increase of 117 shares in one day = 117 × 1.01 = $ 118.17
Total value increase of 117 shares on second day = 117 × 0.11 = $ 12.87
Total value increase of 117 shares on third day = 117 × 0.43 = $ 50.31
Total value of stock after three days = $ 2614.95 + $ 118.17 + $ 12.87 + $ 50.31
⇒ $ 2796.3
This is the total value of her stock after three days.
It is already in a decimal
I think you mean percent, so it will be 90%
Sorry if that is not what you mean
Answer:
x = -2, y = 3
Step-by-step explanation:
Given equations are,
4x + 5y = 7 ---------(1)
3x - 2y = -12 ----------(2)
Multiply equation (1) by 3
12x + 15y = 21 ------(3)
Multiply equation (2) by (-4)
-12x + 8y = 48 --------(4)
Now add equations (3) and (4),
(12x + 15y) + (-12x + 8y) = 21 + 48
(12x - 12x) + (15y + 8y) = 69
23y = 69
y = 3
From equation (2),
3x - 2(3) = -12
3x - 6 = -12
3x = 6 - 12
x = -2
Therefore, x = -2 and y = 3 will be the answer.