I think it is B (don't take me for certain cuz I don't know)
Plugging in the numbers 7x - 2y = 39 fitted and made sense
Answer:
$204 in interest
Step-by-step explanation:
Plug in each variable into the simple interest formula: I = PRT
P = $600
R = 8.5% (0.085)
T = 4 years
Answer:
z=-(51p+84)/(d+p)
Step-by-step explanation:
-p*(51+z)=dz+84
-51p-pz=dz+84
-51p-84=dz+pz
z=-(51p+84)/(d+p)
Answer:
3. 3 : 5; 3: 5
Step-by-step explanation:
First, let's find the leght of the sides of each octagon.

The area of an octagon is defined by

Replacing the area

Therefore, the side of the first octagon is 1.6 inches long.
Its perimeter is: 


Therefore, the side of the second octagon is 3.8 inches long.
Its perimeter is
.
Now, let's divide to find each ratio:
(the ratio between sides).
(the ratio between perimeters).
Therefore, the closest ratio is 3. 3 : 5; 3: 5