Answer: 6
Step-by-step explanation: 12x+3=75
-3 -3
<u>12x</u>=<u>72</u>
12 12
x=6
Answer:
Option C: 11 is the correct answer.
Step-by-step explanation:
Given that:
Length of base of isosceles triangle = b = x
The length of leg of triangle = a = 3x-7
Perimeter of triangle = 63
Perimeter of an isosceles triangle is given by
Perimeter = 2a + b
Putting values in the formula
63 = 2(3x-7) + x
63 = 6x-14+x
63 = 7x-14
63+14=7x-14+14
77=7x
7x=77
Dividing both sides by 7
![\frac{7x}{7}=\frac{77}{7}\\x=11](https://tex.z-dn.net/?f=%5Cfrac%7B7x%7D%7B7%7D%3D%5Cfrac%7B77%7D%7B7%7D%5C%5Cx%3D11)
The value of x is 11.
Hence,
Option C: 11 is the correct answer.
Answer:
225 is the correct one
Step-by-step explanation:
u multiply 15m*9 months u get 135 and then u add the existing 90m and then it becomes 225mp3
15m*9+90
We have these system of inequalities:
![\left \{ {{3x+y>-3} \atop {x+2y](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B3x%2By%3E-3%7D%20%5Catop%20%7Bx%2B2y%3C4%7D%7D%20%5Cright.)
In this way, we have two straight lines that can be solved as follows:
![(1) \ 3x+y=-3 \therefore y=-3x-3 \\ \\ (2) \ x+2y=4 \therefore y=-\frac{x}{2}+2](https://tex.z-dn.net/?f=%281%29%20%5C%203x%2By%3D-3%20%5Ctherefore%20y%3D-3x-3%20%5C%5C%20%5C%5C%20%282%29%20%5C%20x%2B2y%3D4%20%5Ctherefore%20y%3D-%5Cfrac%7Bx%7D%7B2%7D%2B2)
This two lines has been plotted in the Figure below and the region of the inequality is indicated in gray color. Therefore, each point in this region satisfies the system of inequalities. To illustrate this, let's take a point within the gray region, say (0, 0):
![\left \{ {{3x+y>-3} \atop {x+2y-3} \atop {(0)+2(0)-3} \atop {0](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B3x%2By%3E-3%7D%20%5Catop%20%7Bx%2B2y%3C4%7D%7D%20%5Cright.%20%5C%5C%20%5C%5C%20%5Cleft%20%5C%7B%20%7B%7B3%280%29%2B%280%29%3E-3%7D%20%5Catop%20%7B%280%29%2B2%280%29%3C4%7D%7D%20%5Cright.%20%5C%5C%20%5C%5C%20%20%5Cleft%20%5C%7B%20%7B%7B0%3E-3%7D%20%5Catop%20%7B0%3C4%7D%7D%20%5Cright.%20%5C%20True%21)
Neither! but if you round it , it will equal 8 and then it will be even