Can someone explain lesson 6.3 math boxes in everyday math regarding the missing numbers on the number lines
2 answers:
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Answer: 10 bags
Step-by-step explanation:
First we must calculate the field area. Assuming it is a rectangle then its area equals the product of its length times its width
You use 8 pounds of fertilizer per 1,000 square feet
So the amount of fertilizer you should use is:
As the fertilizer comes in bags of 50 pound then you need
Since you can not buy 9.2 bags then we round up to the next whole number.
Finally you need 10 bags of fertilizer
Answer:
Cutoff for a failing score is 49 and 2.28% students failed.
Step-by-step explanation:
We have been given that scores on a psychology exam were normally distributed with a mean of 57 and a standard deviation of 4.
2 standard deviation below mean would be,
Therefore,Cutoff far a failing score is 49.
Now let us find out the z-score for our given values,
Now let us look up the probability from normal distribution table.
Therefore, percentage of students failed is 2.28%.