Answer: width = 280 miles, length = 380 miles
<u>Step-by-step explanation:</u>
width: L - 100
length: L
Perimeter = 2(Length) + 2(width)
1320 = 2(L) + 2(L-100)
1320 = 2L + 2L - 200
1320 = 4L - 200
1520 = 4L
380 = L
width: L - 100 ---> 380 - 100 = 280
length: L ---> 380
Answer:
28
Step-by-step explanation:
5x= 2×10
X=20/5= 4
7x= 7×4= 28.
Please mark as brainliest.
Step-by-step explanation:
The mean is 27 and the standard deviation is 4.
23 is 1 standard deviation below the mean, and 31 is 1 standard deviation above the mean. According to the empirical rule, 68% of the population is between -1 and +1 standard deviations.
68% of 1200 is 816.
19 is 2 standard deviations below the mean, and 35 is 2 standard deviations above the mean. According to the empirical rule, 95% of the population is between -2 and +2 standard deviations.
95% of 1200 is 1140.
D = RT
D = (65)(5)
D = 325
You do this via. substitution.
