The numbers are both equal because, 6.80 is six and eight hundredths, and 6.8 is six and eight tenths. When writing decimals any zero added to the end of the number has no value, 8/10 as a fraction is equal to 80/100 if simplified, so Nicky and Marta wrote equal numbers. :)

6 0

2 years ago

You work for a pharmacy and monthly sales of asthma inhalers in your pharmacy follows a normal distribution with a mean of 191 i

grin007 [14]

Answer: -1.33 .

Step-by-step explanation:

Formula to find the Z-score :

$Z=\dfrac{\text{Expected value - Mean}}{\text{Standard deviation}}$

Given: Mean = 191 and Standard deviation = 21

Then , the z-score corresponding to the expected value of 163 will be :

$Z=\dfrac{163-191}{21}\\\\=\dfrac{-28}{21}\approx-1.33$

Hence, the z score corresponding to selling 163 inhalers is -1.33 .

3 0

2 years ago

I have 56 dollars in my bank account. I deposit 42 dollars into my account. Then I withdraw 10 dollars. How much money do I have

Artist 52 [7]

Answer:

I have left $88

Step-by-step explanation:

Step two:

Given data

Initial amount= $56

deposited amount= $42

The balance after deposit will be= 56+42

=$98

Step two:

If I withdraw 10 dollars

The new balance will be

=98-10

=$88

Hence I have left $88

3 0

2 years ago

PLEASE HELP ME 100 POINTS

Ghella [55]

Answer:

Step-by-step explanation:

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5 0

2 years ago