Answer:
9 weeks.
Step-by-step explanation:
First, find how many dollars Navid needs to save.
288-72= 216
Then, divide how much money that is needed by the number of dollars that are saved per week.
216/24= 9
Then tie it up into an equation:
(288-72)/24= x
x=9
Step-by-step explanation:
First calculate the z-score.
z = (x − μ) / σ
z = (11.07 − 11.5) / 2.7
z ≈ -0.16
From a z-score table:
P(z<-0.16) = 0.4364
The proportion of babies that weigh less than 11.07 lbs is 0.4364.
Answer:
x= -6
Step-by-step explanation: