54/45=1.2
60/48=1.25
30/310=0.096
1.2+1.25+0.096=2.546
your answer is 2.546
hope this help!
Answer:
4 * pi
Step-by-step explanation:
Given r = 10
Formula for the circumference of this full circle is:
2 * r * pi
2 * 10 * pi = 20 * pi
Given one (biggest) part = 16 * pi of this circle.
The other (smaller) part must therefore be:
20 * pi - 16 * pi
4 * pi
7a + 10 = 2a subtract 2a from both sides
-2a -2a
5a + 10 = 0 subtract 10 from both sides
-10 -10
5a = -10 then divide both sides by 5
/5 /5
a = - 2