Answer:
3 is the answer hope it helps
Answer:
Step-by-step explanation:
6x > x + 20
5x > 20
x > 4
1)
p*10 = 8. Solve for the decimal fraction p: p = 8/10 = 0.80. 8 is 80% of the original 10, or, equivalently, 20% less than 10.
2) Think: 12 is half of 24, so we could immediately respond by stating that 12 is 50% less than 24.
3) 21 is what % less than 35? Think: 21 is 14 less than 35, and so taking 14/35 times 100% will give us the desired result. 14/35 = 2/5 = 40%. So, 21 is 40% less than 35.
4) 36 is 4 less than 40. Thus, 36 is 4/40 % less than 40, or 36 is 10% less than 40.
Answer:
0.1666
Step-by-step explanation:
A researcher records the following response times to a visual stimulus: 23 ± 3.1 ( M ± SD) s. Assuming these data are normally distributed, what is the probability that participants responded in 20 s or less
z=X-U/SD
z=(20-23)/3.1
z=-0.9677
checking the negative part of the z score table. we go to
-0.97
that is -0.9 under 0.07
the value we get is 0.1666
P(x<20) means that P(z<-0.97)
0.1666
F(0)= -3 that’s your answer