Divide 16 by 80
16/80 * 100
=0.2 * 100
=20%
In a standard binomial equation: ax² + bx + c = 0
To complete the square; divide the middle coefficient "b" in half and square it to find "c".
(-5/2)² = 25/4
x² - 5x + 25/4 = 25/4
completes the square:
(x - 5/2)² = 25/4
Answer:
45
Step-by-step explanation:
Triangles equal up to 180 degrees therefore you do the following to solve this equation. So you have 80 and 55. So you add 80 to 55 and you get 135. Now you subtract 180 by 135 and that equals 45. So x=45. I will write it out as well.
55+80=135
180-135=45
x=45
To check.
80+55+45=180
Answer: They are 41 miles apart after 3 hours.
Step-by-step explanation:
The speed at which Aran runs is
7 mph.
Distance = speed × time
If Aran runs for 3 hours, then the distance that he would cover is
7 × 3 = 21 miles
The speed at which Anil runs is
5 mph. They decide it would be fair if Anil got a 1 hour head start. This means that the total time that Anil spent running is 3 + 1 = 4 hours.
Distance covered by Anil in 4 hours is
5 × 4 = 20 miles
Therefore, the total distance covered after 3 hours is
21 + 20 = 41 miles