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
lbvjy [14]
3 years ago
9

-10(n+30)=1/2(24-14n)

Mathematics
1 answer:
Pavel [41]3 years ago
6 0
N = -104 is the correct answer
You might be interested in
Mary and Jane both took PSY230 last semester but they were in two different sections taught by different professors. Mary's clas
Greeley [361]

Answer:

Due to the higher z-score, Jane did better in class.

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question:

Whoever's grade had the better z-score did better in class.

Mary's:

Mean of 85, standard deviation of 5, grade of 88. This means that \mu = 85, \sigma = 5, X = 88. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{88 - 85}{5}

Z = 0.6

Jane's

Mean of 80, standard deviation of 10, grade of 88. This means that \mu = 80, \sigma = 10, X = 88. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{88 - 80}{10}

Z = 0.8

Due to the higher z-score, Jane did better in class.

4 0
2 years ago
PLEASE HELP !!<br><br> Which graph shows a constant of proportionality of 2?
kherson [118]

Answer:

B

Step-by-step explanation:

it rises 2 and goes to the right once; 2/1 = 2

3 0
3 years ago
Read 2 more answers
Will mark brainly! 20 points please hurry and help!!
Nata [24]
The correct answer is number one, number four, and number five. Please park Brainliest if helpful. Thanks
6 0
2 years ago
A rectangle is 5 meters longer than its width. If the length is shortened by 2 meters and width is increased by 1 meter, the are
Katarina [22]

Answer: Area = 6m²

              Smaller number = 16

              Hours = 9.6 h

Step-by-step explanation:

A rectangle is 5 meters longer than its width. If the length is shortened by 2 meters and width is increased by 1 meter, the area remains the same. Find the area of the rectangle.

1) w = x m                                2) w = x + 1 m

     l = x + 5  m                               l = x + 5 - 2 = x + 3 m

A₁ = A₂

A = w*l

A₁ = x(x+5) = x² + 5x

A₂ = (x+1)(x+2) = x² + x + 2x + 2 = x² + 3x + 2

A₁ = A₂

x² + 5x = x² + 3x + 2

5x - 3x = 2

2x = 2

x = 1

A₁ = x(x+5) = 1.6 = 6 m²

The ratio of two numbers is 2:5. If the larger number is 40, what is the smaller number.

<u> 2 </u> = <u> x </u>

5     40

5x = 80

x = 80/5 = 16

Sixteen construction workers can finish cementing a floor of a building in 3 hours. On a certain day, only 5 construction workers are available for the job. How long will it take the 5 construction workers to do the cementing job?

workers                      hours

    16                              3

     5                               x

↑                                          ↓              inversely proportional

<u> 5 </u> = <u> 3 </u>

16      x

5x = 16*3

5x = 48

x = 48/5

x = 9.6 h

 

6 0
3 years ago
Quotient of 120 and 10
saw5 [17]
Quotient is the result of division
120 divided by 10 = 12

therefore your quotient would be 12
5 0
3 years ago
Read 2 more answers
Other questions:
  • Simplify and combine terms 9x+6-4x-2x+1-15
    6·2 answers
  • What is the maximum possible value of 18.6?
    6·1 answer
  • Add. <br> 4 5/8 + 2 1/4 =?
    13·2 answers
  • Need help ASAP!! thank you sorry if u can’t see it good :(
    12·1 answer
  • The coordinates of the vertices of a quadrilateral are P(1,2), R(1,4), S(3, 4), and T(4,2).
    7·1 answer
  • Use distributive property<br> -9(-m+4)
    8·2 answers
  • 1) A number which has more than two
    6·1 answer
  • Question is in the pic
    12·1 answer
  • 5 is added to a number the result multiplied by 48 give product 32, what is the original number
    10·1 answer
  • A dinner plate has a circumference of 100.48 cm. What is the area of the dinner plate? Use 7 = 3.14.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!