At a local restaurant, the amount of time that customers have to wait for their food is normally distributed with a mean of 20 minutes and a standard deviation of 5 minutes. Using the empirical rule, what percentage of customers have to wait between 5 minutes and 35 minutes?

Answer:

1.75n

Step-by-step explanation:

First we should just ignore the 'n' in '4n' for now.

So we have 7 and 4 left.

Now we would do 7/4=1.75

Now, we just add on the 'n' to 1.75 and we would get 1.75n

Hope this helps! :)

Step-by-step explanation:

9x + y = -12

8x -y = 5

17X = -7

x -7/17

8(-7/17) -y = 5

-3.3 - Y = 5

-y = 8.3

Y = -8.3

Answer:

36

Step-by-step explanation:

Mason's mom is 36

9 x 4 = 36

Answer:

0 visits

Step-by-step explanation:

According to the scenario, calculation of the given data are as follows,

Rewards for signing up = 80 points

Reward per visit = 2.5 points

Total points needed = 105

Let, number of visits = x

So, we can calculate number of visits by using following formula,

80 + (2.5 × X) = 105

2.5X = 105 - 80

2.5X = 25

X = 25 ÷ 2.5

X = 10 visits.

Hence, Olivia needs to make 10 visits in order to earn a free movie ticket

Step-by-step explanation:

Answer:

17

Step-by-step explanation:

130-7.5=122.5

122.5÷7.5≈16R2

 16+1=17

Answer:

2nd and 3r are the correct options.

Step-by-step explanation:

Answer:

yx=yz+ax

Step-by-step explanation:

Answer:

-48

Step-by-step explanation:

I'm Bigbrain

Step-by-step explanation:

When lines are perpendicular to each other

multiplying their gradients(m) will equal to - 1

so , m1 × m2 = -1

1st:Find m1

5x+6y= -6

make y the subject,

6y= -5x -6

[tex]y = \frac{ - 5x - 6}{6} [/tex]

y= -5/6x - 1

because y = mx + c

m1 = -5/6

2nd:find m2

-5/6 × m2 = -1

m2 = 6/5

3rd: substitute m2 and the coordinates into y=mx+c

y=mx+c

-1= (6/5)(-2)+c

-1 = -12/5 + c

-5 = -12 + c

-5+12= c

c = 7

4th: substitute m2 and c into y= mx+c to find the equation the line

y =6/5x + 7 (Ans)

As per slope-intercept form, the equation of the line through point (−2,−1) and perpendicular to 5x + 6y = -6 is 5y = 6x + 7.

The slope-intercept form of a straight line is y = mx + c.

Here, 'm' is the slope and 'c' ix the y-intercept of the given line.

The given equation is 5x + 6y = - 6

Therefore, in slope-intercept form, this equation will be:

y = - 5x/6 - 1

Therefore, the slope of this line is m = - 5/6 and the y-intercept is c = - 1.

The required line is perpendicular to the given line.

Therefore, the slope of the required line is

= - 1/m

= 6/5

Again, the required line passes through the point (- 2, - 1).

Therefore, - 1 = - 2(6/5) + c

⇒ c = - 1 + 12/5

⇒ c = 7/5

The equation of the required line is

y = (6/5)x + 7/5

⇒ 5y = 6x + 7

Learn more  about the slope-intercept form of a straight line here: https://brainly.com/question/14534555

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Answer: 33 mph

Step-by-step explanation:

First find out what 40% of 55 is:

= 40% * 55

= 22 mph

This means that the speed reduces by 22 mph inside the city.

The speed inside the city is therefore:

= 55 - 22

= 33 mph

Step-by-step explanation:

I got these answers from brainly click on the picture I hope this might help.

Answer:

Step-by-step explanation:

We need to convert function to slope-intrcept form y=mx+b, where:

3x - 5y = 15​           {subtract 3x from both sides by 20}

-5y = -3x + 15                    {divide both sides by (-5)}

y = 3/5x - 5     ⇒   b = -5

Therefore y-intercept of the line is (0, -5)

Answer:

the answer should be 15 marbles

Answer:

Step-by-step explanation:

1 and 5

Answer:

Step-by-step explanation:

Answer:

thenk you for the points give me brainlist pleasee

Answer:

love you valentines

Step-by-step explanation:

Answer:12

Step-by-step explanation:

The range is simply the highest number minus the smallest number. Since we are told that 2 members of the family have shoe size of 7 and the range is 5, then Melissa shoes size will be:

= 5 + 7

= 12

Answer:

x = 88.333

Step-by-step explanation:

Octagon = 1080 degrees

1080 = 2x + x + 143 + 152 + 116 + 125 + 140 + 139 (Clean up the problem)

1080 - 815 = 3x

265 = 3x (Divide each side by 3)

x = 88.333

Answer:

Negative integers, or numbers below zero, are still whole numbers- just not positive whole numbers. This should help you.

Step-by-step explanation:

The statement describes values of x and y such that could be an irrational numbers, the value of x is the square root of an integer, and the value of y is an integer greater than zero.

We have given that the value of x and y,

such that could be an irrational number.

An irrational number, any real number that cannot be expressed as the quotient of two integers.

Negative integers, or numbers below zero, are still whole numbers- just not positive whole numbers.

Therefore we can conclude that

The statement  A, C, or D do not show the irrational numbers

because they all are stated as integers,

which cannot be irrational.

Therefore option B is correct.

The value of x is the square root of an integer, and the value of y is an integer greater than zero.

To learn more about the irrational numbers visit:

https://brainly.com/question/86406

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Answer:

1.335

Step-by-step explanation:

you have to do this equation .445 x 3 =1.335

Answer: Tyler traveled 16 blocks

Step-by-step explanation:

Answer:

laa primera a 1.0 y la otra 6.9

Answer:

unlikely

Step-by-step explanation:

It's unlikely because half of the pens are black and red is only 25% of the total.

Answer:

120 degreess is the answer

Answer:

x>4y−5

Step-by-step explanation:

Answer:316

Step-by-step explanation:

I just solved it by adding it

Answer:

228

Step-by-step explanation:

2(6x4 + 4x9 + 6x9) = 228