Since triangle ADE is similar to triangle ABC and the scale factor is 2, the following relation must be fulfilled:
The, by substituting the given information, we have
By multiplying both sides by x+2, we get
which gives
Then, by subtracting 4x to both sides, we have
and by adding 8 to both sides, we obtain
then, x is given by
Then, by substitutn
The answer is (B) multiply 15 by 9, then divide by 2
Explanation
15 divided by 2/9 equals 67.5 and answer B equals 67.5 because 15 times 9 is 135 then 135 divided by 2 equals 67.5
What I did for this question is I set up ans equation. 5x-7 + 3x+11 = 180 and I added the Xs and and I added 11 to -7. Then I got 8x+4=180. I then "-4" on both sides and then divided 8 by 176. Getting X as 22. We now know X and we put 22 into the equation for D which is "3x+11" getting 77 degrees. Hope this helped!
3*circle= 12
circle=4 <=======
Plug circle value in
diamond+2= 5*(4)
diamond+2=20
diamond=18 <=====
Plug circle and diamond value in
2(4)=18+2*triangle
8=18+2*triangle
-10=2*triangle
-5= triangle <=======
C) 5. Doors are about 6 feet and 9.4m is roughly the equivalent of 30 feet. So 6 x 5 = 30
