Shaneese is buying peanuts and cashews. she has $12 to spend. peanuts cost $3 per pound and cashews cost $4 per pound. if she bu
1 answer:
Solution:
We are given that
Shaneese is buying peanuts and cashews.
he has $12 to spend.
peanuts cost $3 per pound and cashews cost $4 per pound.
she buys x pounds of peanuts and y pounds of cashews.
The equation that represents the amount of each is
Now we have been asked to find the y-intercept.
To find the y-intercept , we need to set x=0
when x=0, equation becomes
Divide both the sides by 4 we get
Hence the y-intercept is 3.
You might be interested in
Answer:
81.85%
Step-by-step explanation:
Given :
The average summer temperature in Anchorage is 69°F.
The daily temperature is normally distributed with a standard deviation of 7°F .
To Find:What percentage of the time would the temperature be between 55°F and 76°F?
Solution:
Mean =
Standard deviation =
Formula :
Now At x = 55
At x = 76
Now to find P(55<z<76)
P(2<z<-1)=P(z<2)-P(z>-1)
Using z table :
P(2<z<-1)=P(z<2)-P(z>-1)=0.9772-0.1587=0.8185
Now percentage of the time would the temperature be between 55°F and 76°F =
Hence If the daily temperature is normally distributed with a standard deviation of 7°F, 81.85% of the time would the temperature be between 55°F and 76°F.