4x-8 = 31
4x = 31 + 8
4x = 39
x = 9.75
Answer:
I thank its b not sure sorry if its wrong
Answer: Oscer
Step-by-step explanation:
The correct answer for the question that is being presented above is this one: "C.7/13." A spinner has three sections. The table shows the results of spinning the arrow on spinner 80 times.<span>Three column table. First column values are Section 1 and 28. Second column values are Section 2 and 36. Third column values are Section 3 and 16.</span><span> </span>
Answer:
Perimeter of △BDC=Sum of all the sides=BD+DC+CB=15+15+15=45
Step-by-step explanation:
Given ΔABC is an isosceles triangle, thus, AB=BC=x and AC=12,
perimeter of △ABC is=42
⇒x+x+12=42
⇒2x=30
⇒x=15
Thus, AB=BC=15
Now, △BDC is an equilateral triangle therefore BD=DC=BC=x
Since, x=15, therefore BD=DC=BC=15
Now, Perimeter of △BDC=Sum of all the sides=BD+DC+CB=15+15+15=45
