answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zolol
12 days ago
13

At an intersection, the red-light times are normally distributed with a mean time of 3 minutes and a standard deviation of 0.25

minutes. Using the empirical rule, approximately what percent of red lights last between 2.5 and 3.5 minutes?

Mathematics
You might be interested in
The perimeter of a rectangle is 202. The length is 26 more than 4 times the width. Find the dimensions
Inessa [12570]

Answer:

P = 2*(26+4y) + 4y

Upon solving for y, we find:

202= 52 +8y +4y

202= 52 +12 y

By substitution, we have:

150 = 12y

Thus, we arrive at:

y = \frac{150}{12}= 12.5

And for x, we determine:

x = 26 +4*12.5 = 76

This gives us a length of 76 and a width of 12.5.

Step-by-step explanation:

We are dealing with a rectangle. The formula for the perimeter is:

P= 2x+2y

Here, x denotes the length and y the width. The following conditions can be established:

x = 26 +4y

Substituting these values yields:

P = 2*(26+4y) + 4y

When we solve for y, we find:

202= 52 +8y +4y

202= 52 +12 y

By substitution, we obtain:

150 = 12y

Thus, we conclude:

y = \frac{150}{12}= 12.5

The length is found to be 76, while the width measures 12.5.

6 0
2 months ago
Marks brothers is paying a dividend of 56.25 on each share. How much will PRH recieve in dividends
Leona [12618]

I'm uncertain if this is accurate.

The problem states the dividend per share is 56.25. To calculate the total dividend PRH receives, the total shares owned by PRH should be provided. In any case, the dividend can be found with this formula:

Dividend = 56.25 × (Number of Shares)

3 0
3 months ago
Four people—Rob, Sonja, Jack, and Ang—enter their names into a drawing. The winner receives either a t-shirt or a mug, and which
babunello [11817]

Answer:

this is the answer 25

Step-by-step explanation:

i guessed

4 0
1 month ago
Sandy put $1000 in a savings account which pays 3% interest per year. After four years how much money will
Inessa [12570]

Step-by-step explanation:

Let 'P' represent the principal amount

'R' will stand for the interest rate

'T' indicates the time period

P = $1000

R = 3%

T = 4 years

We can compute the simple interest using,

Interest = (P x R x T) / 100

= (1000 x 3 x 4) / 100

= 12000 / 100

= $120

Thus, the simple interest over 4 years totals $120.

Total amount = P + Interest

= 1000 + 120

= $1120

Consequently, the account will have $1120 after 4 years.

3 0
3 months ago
Read 2 more answers
Other questions:
  • In the set of all past due accounts, let the event A mean the account is between 31 and 60 days past due and the event B mean th
    13·1 answer
  • Which expressions are equivalent to the given expression √40
    9·2 answers
  • Amare wants to ride a Ferris wheel that sits four meters above the ground and has a diameter of 50 meters. It takes six minutes
    13·2 answers
  • For the 7:30 show time, 140 movie tickets were sold. Receipts from the $13 adult tickets and the $10 senior tickets totaled $1,6
    11·2 answers
  • The vertices of quadrilateral E F G H are E (-7,3) , F (-4,6) , G (5, -3) , and H (2,-6). What kind of quadrilateral is E F G H?
    9·2 answers
  • What kind of vehicle do you prefer: two-door, four-door or minivan? What type(s) of data will this statistical question represen
    12·2 answers
  • Grace works as a salesperson at an electronics store and sells phones and phone accessories, and makes a fixed commission for ea
    12·2 answers
  • Identify a transformation of the function ƒ(x) = x by observing the equation of the function g(x) = m ⋅ x, with m > 1
    12·2 answers
  • You have an ice cream cone that is 6 inches tall with a radius of 2 inches. The cone is completely filled with ice cream. There
    8·1 answer
  • Using Normal Distribution to Analyze Data Martin suspects that people carry less cash with them than they used to because of cre
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!