Answer: 87.5%
Explanation: Since Janice answered correctly 21 questions out of 24 questions, you would divide 21 from 24
21/24 = 0.875
0.875 as a percentage would mean moving the decimal point two places to the right as 87.5%
Answer:
108.75km
Step-by-step explanation:
please find attached the diagram
total displacement can be determined by using Pythagoras theorem
The Pythagoras theorem : a² + b² = c²
where a = length
b = base
c = hypotenuse
length of x =
20² + 40²
= 400 + 1600
2000
square root of 2000
= 44.72km
length of y
40² + 50²
1600 + 2500 = 4100
square root of 4100
64.03km
total displacement = 44.72 + 64.03 = 108.75
Its simple.
Cost of t-Shirt each=$14
Cost of shorts each=$18
No. of clothes=x t-shirts and y shorts
so just multiply cost of each t-shirt no.of t-shirts and do the same thing with the Shorts
you get the answer as 14x +18y
There! you've expressed it in the form of ax+by and 14 and 18 are also positive or negative constant
Youve found the answer satisfing all the requirements
hope it helped you aand if it did please mark as brainliest answer
Thanks and keep studying
If score of 3,540 points is 2 standard deviations above the mean score of 3,110, then:
3,110 + 2 s= 3,540
2 s = 3,540 - 3,110 = 430
s = 430 : 2
s = 215
Answer: A) The standard deviation is 215.
