Answer:
D. Paul can type 3/4 as fast as Jennifer
Step-by-step explanation:
60/80 = 3/4
Divide 3 1/2 by 7= 1/2 a cup per person
Answer:
4
Step-by-step explanation:
7+(-14)+(-6)+13+4
7+(-20)+13+4
(-13)+13+4
0+4
4
Answer: 1.25
Step-by-step explanation:
Given: A college-entrance exam is designed so that scores are normally distributed with a mean
= 500 and a standard deviation
= 100.
A z-score measures how many standard deviations a given measurement deviates from the mean.
Let Y be a random variable that denotes the scores in the exam.
Formula for z-score = ![\dfrac{Y-\mu}{\sigma}](https://tex.z-dn.net/?f=%5Cdfrac%7BY-%5Cmu%7D%7B%5Csigma%7D)
Z-score = ![\dfrac{625-500}{100}](https://tex.z-dn.net/?f=%5Cdfrac%7B625-500%7D%7B100%7D)
⇒ Z-score = ![\dfrac{125}{100}](https://tex.z-dn.net/?f=%5Cdfrac%7B125%7D%7B100%7D)
⇒Z-score =1.25
Therefore , the required z-score = 1.25
Answer:
15= 5x+ 2
Step-by-step explanation:
y= mx+b
y is the intercept,