<span>We know that the runner completed her first race in 17.8 seconds and that she completed her second race in 16.9 seconds. Then the difference between the first race and the second race is .9 seconds. Now we divide .9 by 17.8 and multiply by 100 to get the percent decrease. We get 5.06%. The percent decrease in her time is 5%.</span>
Answer:
25
Step-by-step explanation:
15.60 divided by 11.70 = 25
Answer:
Step-by-step explanation:
n²,5n
common denominator=5 n²
I cant rly do all the work rn buy if you add them together and set them equal to 180° you’ll get the answer
