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professor190 [17]
3 years ago
8

Can someone answer this math question

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0

Answer:

13 notepads were sold, and each at the price: $2.05

Step-by-step explanation:

Notice that in order to obtain a price per unit larger than $2 and at the same time smaller than $3, the total in sales $26.65 has to be divided by whole numbers between 9 and 13 inclusive. Any other whole number smaller than 9 will give a price per unit larger than $3. And any whole number larger than 13 will give a price per unit smaller than $2.

As we divide $26.65 by 9, 10, 11, 12, and 13, we obtain:

$26.65/9 = $2.9611111...

$26.65/10 = $2.665

$26.65/11 = $2.4227272...

$26.65/12 = $2.22083333...

$26.65/13 = $2.05

We notice then that the only quotient that gives a value representing exact cents (and not something smaller than a cent) is the last one (the division by 13).

This tells us that 13 notepads were sold at a price of $2.05 each

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A researcher wants to see if birds that build larger nests lay larger eggs. He selects two random samples of nests: one of small
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Answer:

95% confidence interval for the difference between the average mass of eggs in small and large nest is between a lower limit of 0.81 and an upper limit of 2.39.

Step-by-step explanation:

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First let's define the variables of the problem:
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t> = 0.15b
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