1answer.
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
11111nata11111 [884]
2 years ago
7

Nelson used 35% of his savings account for his class trip in May. If he used $140 from his savings account while on his class tr

ip, how much money was in his savings account before the trip?
Mathematics
1 answer:
vladimir1956 [14]2 years ago
6 0

Answer:

$400

Step-by-step explanation:

140 ÷ 35% = 400

You might be interested in
Correct series of keys ?
sashaice [31]
That means "is this the right amount of keys" and that ia what it means
7 0
2 years ago
at right is graph of this situation predict how the line would change to present the average cost of gas in dicember of 2005 whe
Lina20 [59]
The average cost represents the slope of the line of the graph.
Increasing the slope of the graph increases the steepness of the line.
Therefore, increasing the average cost of gas from $1.50 to $2.20 will increases the steepness of the line. (i.e. the line becomes closer to the vertical line).
8 0
3 years ago
The weekly amount spent by a small company for in-state travel has approximately a normal distribution with mean $1450 and stand
Llana [10]

Answer:

0.0903

Step-by-step explanation:

Given that :

The mean = 1450

The standard deviation = 220

sample mean = 1560

P(X > 1560) = P( Z > \dfrac{x - \mu}{\sigma})

P(X > 1560) = P(Z > \dfrac{1560 - 1450}{220})

P(X > 1560) = P(Z > \dfrac{110}{220})

P(X> 1560) = P(Z > 0.5)

P(X> 1560) = 1 - P(Z < 0.5)

From the z tables;

P(X> 1560) = 1 - 0.6915

P(X> 1560) = 0.3085

Let consider the given number of weeks = 52

Mean \mu_x = np = 52 × 0.3085 = 16.042

The standard deviation =  \sqrt {n \time p (1-p)}

The standard deviation = \sqrt {52 \times 0.3085 (1-0.3085)}

The standard deviation = 3.3306

Let Y be a random variable that proceeds in a binomial distribution, which denotes the number of weeks in a year that exceeds $1560.

Then;

Pr ( Y > 20) = P( z > 20)

Pr ( Y > 20) = P(Z > \dfrac{20.5 - 16.042}{3.3306})

Pr ( Y > 20) = P(Z >1 .338)

From z tables

P(Y > 20) \simeq 0.0903

7 0
3 years ago
Is y^2=9x+1 a function
elena-14-01-66 [18.8K]

Answer:

Slope:  

2

_

9

y-intercept:  

−1

Step-by-step explanation:

6 0
2 years ago
cube A has volume V. the edges of cube b are three times as long as the edges of cube A. What is the volume of cube b in terms o
Mariulka [41]

Answer:

V=a cube

If i am wrong let me know!

4 0
2 years ago
Other questions:
  • What is the value of x? Enter your answer in the box. x = NOTE: Image not drawn to scale.
    8·1 answer
  • ASAP, PLEASE!! Is the system of equations consistent and independent, consistent and dependent, or inconsistent? y = -3x + 1...
    10·1 answer
  • a golfers score after playing on Friday was +2. His score saturdays round was -5. At the wnd of his round on Sunday he was at ev
    6·2 answers
  • What fraction of 1 qt is 3 cups
    15·2 answers
  • 15. Evaluate h? - hk + 2k3 – 2 for h = 4 and k=-1.
    6·1 answer
  • A designer wants to create a whisper chamber in the shape of an ellipse. He has a warehouse space with a longest length of 50 ya
    6·1 answer
  • In the figure shown below, point D is the midpoint​
    5·1 answer
  • ¿Cómo se mide el grado de una ecuación algebraica?
    5·1 answer
  • I’m doing a test and it’s already hard
    5·2 answers
  • Translate the shape A three squares right and one square down.What are the coordinates of the vertices of the image?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!