For the first one multiply each term by the LCM of 4 and 6, which is 12:-
15x -36 = 2y..................(1)
and second multiply by 5:-
2x + y = 9..............(2)
solving:-
from equation (2) y = 9-2x, substitute in equation (1):-
15x - 36 = 2(9-2x) = 18 - 4x
19x = 54
x = 54/19 = 2.84
so y = 9 - 2(2.84) = 3.32
Step-by-step explanation:
11


12


13


14


15


16


17



18



19



20



Answer:
B. 0.3
Step-by-step explanation:
sin²(t) + cos²(t) = 1
sin²(t) + 0.1² = 1
sin²(t) = 1 - 0.01 = 0.09
sin(t) = √(0.09) = 0.3
The absolute change in price was $12−$8=$4. Relative to the original price, it was 412, which is 0.3333 or 33.33%.
The answer was 1,150.0 but as a whole number its 1,150.
Answer:

Step-by-step explanation:
Collect like terms and calculate the sum