Answer:
x = 20.
Step-by-step explanation:
-2x – 9x = -12(x +5) + 8(x – 10)
-2x – 9x = -12x -60 + 8x – 80
-2x - 9x + 12x - 8x = -140
-7x = -140
x = 20.
is the size in wheels on the scale model .
<u>Step-by-step explanation:</u>
Correct Question : Tom has a scale model of his car. The scale factor is 1 : 12. If the actual car has 16-inch wheels, what size are the wheels on the scale model?
We have , The scale factor is 1 : 12. We need to find If the actual car has 16-inch wheels, what size are the wheels on the scale model .Let's find out:
Ratio of size of wheels to actual size of wheels is 1:12 , but actual car has 16-inch wheels So ,
⇒
{ x is size of wheel in scale model }
⇒ ![\frac{1(16)}{12} = \frac{x}{16}(16)](https://tex.z-dn.net/?f=%5Cfrac%7B1%2816%29%7D%7B12%7D%20%20%3D%20%5Cfrac%7Bx%7D%7B16%7D%2816%29)
⇒ ![x =\frac{16}{12}](https://tex.z-dn.net/?f=x%20%3D%5Cfrac%7B16%7D%7B12%7D)
⇒ ![x =\frac{4}{3}inch](https://tex.z-dn.net/?f=x%20%3D%5Cfrac%7B4%7D%7B3%7Dinch)
Therefore ,
is the size in wheels on the scale model .
Answer:
Z, X, Y
Step-by-step explanation:
i got it right on the assignment
Answer:
(4 x + 9) (16 x^2 - 36 x + 81)
Step-by-step explanation:
Factor the following:
64 x^3 + 729
64 x^3 + 729 = (4 x)^3 + 9^3:
(4 x)^3 + 9^3
Factor the sum of two cubes. (4 x)^3 + 9^3 = (4 x + 9) ((4 x)^2 - (4 x) 9 + 9^2):
(4 x + 9) ((4 x)^2 - 4 9 x + 9^2)
4×9 = 36:
(4 x + 9) ((4 x)^2 - 36 x + 9^2)
Multiply each exponent in 4 x by 2:
(4 x + 9) (4^2 x^2 - 36 x + 9^2)
4^2 = 16:
(4 x + 9) (16 x^2 - 36 x + 9^2)
9^2 = 81:
Answer: (4 x + 9) (16 x^2 - 36 x + 81)
Answer:
240 employees or A
Step-by-step explanation:
12 employees : 2 instructors
or 6:1
so there are 40 instructor
so 6*40 equals 240 employees