First let establish the eqautionlet y be the total costx is the number of orders
y = 3x + 115
since the minimum order is 25x >= 25
then The school can spend a maximum of $800
800 <= 3x + 115
800 - 115 <= 3x685 <= 3x685/3 <= x228.33 <= x
Answer: 0.27
You can mark me brainliest on the other question you know
Step-by-step explanation:
Answer:
0.71%
Step-by-step explanation:
Given that a normally distributed set of data has a mean of 102 and a standard deviation of 20.
Let X be the random variable
Then X is N(102, 20)
We can convert this into standard Z score by
We are to find the probability and after wards percentage of scores in the data set expected to be below a score of 151.
First let us find out probability using std normal table
P(X<151) = 
We can convert this into percent as muliplying by 100
percent of scores in the data set expected to be below a score of 151.
=0.71%
Answer:
20 miles.
Explanation:
2x + 20 = 3x
x = miles driven
The left side of the equation represents Laguna's, and the right side Salvatori's.
You can multiply the miles driven by their price per mile. This gives you (2x) on the left, for Laguna's $2 per mile, and (3x) for Salvatori's $3 per mile.
The (+20) represents the initial payment for Laguna's, but Salvatori's doesn't have this, so we can leave it out.
Finally, eliminate.
Subtract 2x from 3x on the right. This leaves you with 20 = 1x.
