Percentage change = difference/original x 100
(9.00-7.50)/7.50 x 100 = 2.50/7.50 x 100
= 1/3 x 100
= 33.3% increase
He was camping at an elevation of 18,492
the following day, he descended (he came down) 2,516 ft....
so ur expression would be : 18,492 - 2,516 <==
and ur answer would be : The elevation of the 2nd campsite is :
15,976 ft <==
Pedro = 280 + x
ricky = x
280 + x + x = 2672
2x = 2392
x = 1196
pedro = 1476, ricky = 1196
hope this help
The required number which when decreased by 8 is divisible by 21, 27, 33, and 55 is 10403.
We need to find the smallest number which when decreased by 8 is divisible by 21, 27, 33, and 55.
<h3>What is LCM?</h3>
The least common multiple is also known as LCM (or) the lowest common multiple in math. The least common multiple of two or more numbers is the smallest number among all common multiples of the given numbers.
We find the LCM of 21, 27, 33, and 55.
3 | 21 27 33 55
3 | 7 9 11 55
3 | 7 3 11 55
7 | 7 1 11 55
5 | 1 1 11 55
11 | 1 1 11 11
| 1 1 1 1
When decreased by 8, we have to add 8 in the LCM of the numbers.
That is 10395+8=10403
Therefore, the required number when decreased by 8 is divisible by 21, 27, 33, and 55 is 10403.
To learn more about the LCM of numbers visit:
brainly.com/question/10942748.
#SPJ4
Answer:
There is evidence since we have to apply a two-tailed test
p-value = 0.0212
Step-by-step explanation:
Given data:
α=0.05.
population std = 5.32
A) To test if there is difference in the comprehension of the lab based on test scores at α = 0.05. = 5%
we will apply a two-tailed test ( Null and alternate hypothesis test )
H0 : u1 = u2
Ha : u1 ≠ u2
there is evidence since we have to apply a two-tailed test
B ) Determine the P-value for the test
attached below a detailed solution ( solved using excel )
Z- test : two sample for means
p-value = 0.0212
