Answer:
9
Step-by-step explanation:
You are trying to figure out what x is.
So, ignore the fact that x is a letter and think of it as a "?".
Then think, "What number divided by 3 equals 3?"
So, 9 is the answer!
You could also switch the number around, and multiply:
3 x 3 = x or 3 x 3 = ?
(x+5)(x+5)
x^2+10x+25(2x-7)
2x^3+20x^2+50x-7x^2-70x-175= 2x^3+13x^2-20x-175
Answer:
Lenght: 21 inches.
Width: 14 inches.
Step-by-step explanation:
1. You know that the width (W) of a rectangle is 7 inches less than the length (L), then:
![W=L-7](https://tex.z-dn.net/?f=W%3DL-7)
2. The perimeter is 70 inches.
3. The formula for calculate the perimeter of a rectangle is:
![P=2L+2W](https://tex.z-dn.net/?f=P%3D2L%2B2W)
3. Substitute
and the value of the perimeter into the equation to calculate the perimeter and solve for the length:
![70=2L+2(L-7)](https://tex.z-dn.net/?f=70%3D2L%2B2%28L-7%29)
![70=2L+2(L-7)\\84=4L\\L=21](https://tex.z-dn.net/?f=70%3D2L%2B2%28L-7%29%5C%5C84%3D4L%5C%5CL%3D21)
4. Then the width is:
![W=L-7=21-7=14](https://tex.z-dn.net/?f=W%3DL-7%3D21-7%3D14)
Answer:
Triangle RTS is similar to JLK
Step-by-step explanation:
Scale factor is 1.5
Answer:
The number of meal combinations, She has to choose:
N = 3 x 4 x 3 =36
Hope this helps!
:)