Answer:
A is 6, B is -20, and c is 6.3
a) 75 percent of the regular price is the price for senior citizens.
b) $6.712 is the price for senior citizens.
<u>
</u><u>Step-by-step explanation:</u>
- The regular price is the 100% = $8.95
- The offer price for senior citizen = 15% discount from 100%
∴ Percent of the regular price for senior citizens = 100% - 15% = 75%
The price for the senior citizens = 75% of $8.95
⇒ (75/100)
8.95
⇒ 0.758.95
⇒ 6.712 dollars.
∴ The price for senior citizens = $6.712
$44 (here I am writing random stuff so I can get 20 characters)
I'm sure there are easier ways, but the way I'd do it is find the radius of the circle:
A=πr²
78.5=3.14r²
25=r²
5=r
Then find the circumference:
C=2πr
C=2π5
C=31.4
then find the ratio of an arc with lenth of 6 to the whole circumference:
6/31.4=0.19108280254777070063694267515924
So an arc of length 6 is 19.108...% of the whole circle, so it would "subtend" the same percentage of degrees out of the circle's 360:
360*0.19108...=68.789808917197452229299363057325 degrees.
I'd put 68.79 degrees as my answer.
ok i think it is B, use the pic i sent u in the previous question...
