Answer:
72 cubic inches
Step-by-step explanation:
The volume of a rectangular prism shape, such as a brick, is the product of its dimensions:
V = LWH
V = (8 in)(4 in)(2.25 in) = 72 in^3
The volume of each brick is 72 cubic inches.
Answer:
Step-by-step explanation:
Amount invested 39000 dollars
Let x be invested at 8% and y at 9.5%
Then interest on X = 0.08x and interest of Y =0.095 Y
The equations that connect x and y are
![x+y =39000\\-0.08x+0.095y=467.50](https://tex.z-dn.net/?f=x%2By%20%3D39000%5C%5C-0.08x%2B0.095y%3D467.50)
Multiply second equation by 100 and I equation by 8
![8x+8y = 312000\\-8x+9.5y=46750\\----------------------\\17.5y =358750\\y=20500](https://tex.z-dn.net/?f=8x%2B8y%20%3D%20312000%5C%5C-8x%2B9.5y%3D46750%5C%5C----------------------%5C%5C17.5y%20%3D358750%5C%5Cy%3D20500)
![x = 39000-20500 = 18500](https://tex.z-dn.net/?f=x%20%3D%2039000-20500%20%3D%2018500)
18500 at 8% and 20500 at 9.5%
Answer:
x=1/6 or x=0.1666666667
Step-by-step explanation:
Answer:
y = 2
Step-by-step explanation:
y varies inversely with x setup is:
y = k/x
7 =
(find 'k')
k = 7/1 · 2/3
k = 14/3
use what you know about 'k' and 'x' to solve for 'y'
y = 14/3 ÷ 7/3 (remember to multiply by the reciprocal when dividing fractions)
y = 14/3 · 3/7
y = 2