Answer:
2 times _ minus three = 12
x=9
Step-by-step explanation:
In my head I would do 12 divided by 2 then I would add 3 to 6 which is the answer to 12 divided by 2
Answer:
64 cups of flour
Step-by-step explanation:
Each crust uses 4 cups of flour.
So, 16 crusts uses 64 cups of flour. (16x4)
<span>Simplify both sides of the inequality.
x-5>25
</span><span> Add 5 to both sides.
</span>
x-5+5>25+5
x>30
Answer: (total amount paid - $40) / 0.05
Step-by-step explanation:
Given the following :
Monthly fee = $40
Additional fee = $0.05 per minute on phone
Given the the amount paid for the month is available, number of minutes he was on phone can be determined thus :
Total amount to be paid = monthly fee + additional fee
Additional fee = $0.05 × n
Where n = number of minutes on phone
Hence,
Total amount paid = $40 + $0.05n
If the amount paid is known, the number of minutes on phone can be calculated thus;
(Total amount paid - monthly fee) = $0.05n
n = (Total amount paid - monthly fee) / fee per minute on phone
(total amount paid - $40) / 0.05
Answer:
a) Option C) The score was 2.49 standard deviations higher than the mean score in the class.
b) 2.3%
Step-by-step explanation:
a) We are given that the distribution of test grades is a bell shaped distribution that is a normal distribution.
Formula:
Option C) The score was 2.49 standard deviations higher than the mean score in the class.
b) The z-score for a particular score is -2.
We have to evaluate
P(z < -2)
Calculating the value from normal z-table.
Thus, 2.3% of of the class scored lower than my friend.
