2x=56. Then divide each side by 2 then that gives you what x equals
Use the Law of Sines for this one: 26/sin 55 = 28/sin A; 26 sin A = 28 sin 55;
sin A = 28 sin 55/26; sin A = 22.9362/26; sin A = .88216, and inverse sin(.88216) = 61.90
15x+35 I think I’m not sure .
Answer:
The answer to your question is the letter A.20%
Step-by-step explanation:
Data
Questions correct in the first attempt = 25
Questions correct in the second attempt = 30
Percent of increase = ?
Process
1.- Use proportions and cross multiplication to solve this problem. 25 questions is 100%.
25 questions -------------------- 100%
30 questions -------------------- x
x = (30 x 100)/25
x = 3000/25
x = 120 %
2.- Subtract 100 from 120%
Percent increase = 120 - 100
= 20%
