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svet-max [94.6K]
3 years ago
15

A restaurant is offering 15 percent off beverages. The check is $90.00 with the beverage total being $15.00. What is the check t

otal after the discount ?
A 77.75
B 76.50
C.75.00
D.87.75
Mathematics
2 answers:
solmaris [256]3 years ago
8 0
B is the answer to your question
zlopas [31]3 years ago
4 0

b because 90

                  15

                  15

               -_____

                  76.50

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The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.30​, and the sample statistics
IrinaK [193]

Answer: 0.84

Step-by-step explanation:

let p be the population proportion of adults who smoked a cigarette in the past week.

As per given , we have

H_a: p

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The test statistic for proportion is given by :-

z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}

Substitute all the values , we get

z=\dfrac{0.31-0.30}{\sqrt{\dfrac{0.30(1-0.30)}{1491}}}\\\\=\dfrac{0.01}{\sqrt{0.000141}}\\\\=\dfrac{0.01}{0.011874342087}=0.84261497731\approx0.84

Hence, the value of the test statistic = 0.84

6 0
4 years ago
How many 7-digit phone numbers are possible, assuming that the first digit can’t be a 0 or a 1? (b) re-solve (a), except now ass
sladkih [1.3K]
A. We are going to form 7 digit numbers from the set {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

where the first digit cannot be 0 or 1.

so we have 8 choices for the 1. digit, and 10 choices for all the other 6 digits.

this means there are 8*10*10*10*10*10*10=8* 10^{6} possible numbers.

b.

consider the numbers which start with 911. There are 10*10*10*10=10 ^{4} such numbers, since for the 4th, 5th, 6th and 7th digits we have 10 choices.

then we remove this number, from the one we found in a:

There are in total 8* 10^{6}-10^{4}=7,990,000 numbers which don't start with 911.


Answer:

a.8*10^{6}
b.7,990,000

3 0
3 years ago
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Allisa [31]
St meaans s times t
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t=9
st=-4 times 9
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4 times 9=36
-4 time s9=-36
st=-36
answer is -36
4 0
3 years ago
Read 2 more answers
I need help please !!
AfilCa [17]

Answer:

y = 2x + 14

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask ;)

5 0
4 years ago
if one store is selling 3/4 of a bushel of apples for 9 dollars and another store is selling 2/3 of a bushel of a apple for 9 do
fredd [130]
3/4 of a bushel is 75%, 2/3 of a bushel is 66.67% about. Being that both cost $9 the first store who is selling 3/4 of a bushel is a better deal because you get more for what you pay for.
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