The sales price would be $7.50, and with $7.50 off, the new price would be $42.50. I have never been good at percentages but here’s how I do it...
If it’s a percent then it’s fraction is just the number above an 100 then multiply that b the original price
15/100•50=7.5
How to remember is, what is 15% of 50? And “of” always means multiply so just multiply them
Hope this helps!
4×10-1
40-1
39 is your answer
Answer:a. μ = 9.667 hours
b. σ = 1.972 hours
c. SE = 0.805 hour
Sample size (n) = 6
Sample data (xi) = 10, 8, 9, 7, 11, 13
a. Mean time spent in a week for this course by students:
Sample mean is given by:
Mean time spent in a week per student is 9.667 hours
b. Standard deviation of the time spent in a week for this course by students:
Standard deviation is given by:
c. Standard error of the estimated mean time spent in a week for this course by students:
Standard error is given by:
Answer:
4
Plzzzzz give me Brainliest!!!!!
Answer:4z=-4
Step-by-step explanation:So you do distributive property 4×12 is 48 four times is 40 then you do 4Z +48 equals 44 then you subtract 48 from both sides because it’s edition so you change it to subtraction then once you subtract 48 from both sides 44 subtracted by 48 is -4 so for Z equals -4