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gregori [183]
3 years ago
7

HELP ASAP PLEASE!!!!!!!!!! WILL GIVE BRAINLIEST

Mathematics
1 answer:
omeli [17]3 years ago
4 0
Inequation
750 - 70p  \leqslant 450
then
750 - 450 \leqslant 70p
300 \leqslant 70p
\frac{300}{70}  \leqslant p
4.29 \leqslant p
then the minimum whole number of passengers who need to get off elevator to meet the weight requirement is about 5 passengers.
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What is the range of the function represented by the table?
Lapatulllka [165]

Answer:

{2.3, 5.0, 7.5, 10.0, 12.5} Option b

Step-by-step explanation:

Domain is the input values and the range is the output values. The y values.

6 0
3 years ago
Read 2 more answers
During a sale, the price of a digital camera is reduced by $63 from the original price of $180. By what percentage is the price
SpyIntel [72]

Answer:

35%

Step-by-step explanation:

63/180=0.35

move the decimal over 2 spaces 35%

6 0
3 years ago
During a rock concert, the noise level (in decibels) in front row seats has a mean of 95 dB with a standard deviation of 8 dB. W
lorasvet [3.4K]

Answer:

\frac{8}{9} *100= 88.89 \%

So we have at least 88.89% of the noise level values within 3 deviation from the mean.

Step-by-step explanation:

For this case let define the random variable X as the noise level, we know the following properties for X:

E(X) = 95 , Sd(X)= 8

And for this case we don't know the distribution for the random variable X.

But we can use the Chebysev theorem who states that the minimum percentage of the data that lies within k standard deviations from the mean is given by:

1 -\frac{1}{k^2}, k>1

So for this case we have that k = 3 and if we use this theorem we have:

1- \frac{1}{3^2}

1- \frac{1}{9}=\frac{8}{9}

And we can convert this into % and we got:

\frac{8}{9} *100= 88.89 \%

So we have at least 88.89% of the noise level values within 3 deviation from the mean.

5 0
3 years ago
What is the value of x? 114° 2x a. 38 b. 57° c. 76° d. 85°​
chubhunter [2.5K]

Answer:

I THINK is (57°) if it wrong im sorry.

8 0
3 years ago
A restaurant bills comes to $28.35. Find the total cost, to the nearest cent, if the tax is 6.25% and a 20% tip is left on the a
True [87]

Answer:

$35.79. I hope this help!!

Step-by-step explanation:

First, we can determine the amount of the tax:

t

=

b

⋅

r

Where:

t

is the amount of the tax.

b

is the amount of the bill - $28.35 for this problem.

r

is the tax rate.

6.25

%

for this problem. Percent or % means per 100 or out of 100. We can write

6.25

%

as

6.25

100

Substituting gives:

t

=

$

28.35

⋅

6.25

100

t

=

$

177.1875

100

t

=

$

1.771875

t

=

$

1.77

Next, we can determine the amount of the tip:

p

=

b

⋅

g

Where:

p

is the amount of the tip.

b

is the amount of the bill - $28.35 for this problem.

g

is the gratuity rate.

20

%

for this problem. Percent or % means per 100 or out of 100. We can write

20

%

as

20

100

Substituting gives:

p

=

$

28.35

⋅

20

100

p

=

$

567.00

100

p

=

$

5.67

Now, we can add the amount of the bill, the tax and tip amounts to find the total cost:

$28.35 + $1.77 + 5.67=$35.79

7 0
3 years ago
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