The circumference of a circle=2

r
We know that diameter is double the radius, and therefore can be written as d=2r
Circumference of a circle in terms of diameter is C=

d
The 2r cancels out
454545/151515 which would be 3 i might be wrong.
Answer:
a^2 + b^2 = c^2
a^2 + 24^2 = 25^2
a=7
Step-by-step explanation:
<span>X*90/100 =45
X =45*100/90
X =50
Number =50 </span>
The correct way to solve this equation would be:
7=5+3(x-4)
Distribute the Brackets.
3*x=3x
3*4=12
7=5+3x-12
Add like terms.
7=-7+3x
Add 7 to both sides.
(7)+7=(-7+3x)+7
14=3x
Divide both sides by 3.
(14)/3=(3x)/3
4.6667 or 14/3 =x
Both answers are incorrect.
Some the significant mistakes:
-Didn't follow BEDMAS
-How did 7=8(x-4) turn into 78=x-4?
Hope this helps.
-Benjamin