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
Neko [114]
3 years ago
7

A rectangle has a length of x+7 and a width of 2x-3. If it’s perimeter is 32, what is the value of 3x? A.4/B.12/C.14/D.36/E.42/

Mathematics
1 answer:
Tamiku [17]3 years ago
7 0

Answer:

The correct option is C. 14.

Step-by-step explanation:

First you have that the perimeter of a rectangle = (2·length) + (2·width)

⇒perimeter of a rectangle = [2·( x + 7)] + [2·(2x - 3)]

⇒ 32 = [2·( x + 7)] + [2·(2x - 3)] ⇒ 32 = (2x + 14) + (4x - 6)

⇒ 32 = 6x + 8 ⇒ 32 - 8 = 6x ⇒ 24= 6x ⇒ 24/6 = x ⇒ x = 4. ⇒ 3x= 12.

You might be interested in
Find the common difference of an Arithmetic progression of 7,11,15,19...​
docker41 [41]

Answer:

+4

Step-by-step explanation:

The numbers above are all odd number

The arithmetic progression is the addition of +4

7+4=11

11+4=15

15+4=19

5 0
3 years ago
An educator wants to see how the number of absences for a student in her class affects the student’s final grade. The data obtai
Vinvika [58]

Answer:

Simple linear equation is :

Y = 86.784 - 2.67x

Step-by-step explanation:

The educator wants to see the relationship between no of absences and final grades of the student. No. of absence of student is independent variable while final grade is dependent variable. The final grades of the student are dependent on the no. of absence they do.

b = Sxy / Sxx

b =  { 2312 [ 37 * 422 ] / 6 } / 337 - 37^2 / 6 = -2.67

a = -2.67 * 37/6 = 86.784

5 0
3 years ago
What is 2 to the first power?
Colt1911 [192]
2 to the first is 2 because there is only one 2
7 0
2 years ago
Find the difference between -14w - 3 and 5w.
kirza4 [7]
(-14w) - (-3) - (-5w) equals
-9w + 3

or if what you're saying is
-14w - 3 - 5w it equals
-19w - 3

or if what youre saying is
(-14w - 3) - 5w it equals
-19w - 3


8 0
3 years ago
Read 2 more answers
Frank brought some milk home from the dairy farm. He was able to pour 12 glasses of milk. Each glass held 1/2 pint of milk.
olga2289 [7]
He brought home 6 pints of milk home
hope it helps

5 0
3 years ago
Other questions:
  • Lesson 8 homework practice solve percent problems
    15·2 answers
  • Rename the number. Use the place value chart to help. 24 ten thousands =
    10·2 answers
  • I need help with this answer can you plz help
    10·1 answer
  • The prices of two radios are in the ratio x:y
    15·2 answers
  • Find the area I will mark as brainless thank u and rate 5 starts
    6·1 answer
  • Answer the following questions using what you've learned from this unit. Write your responses in the
    13·1 answer
  • Solve this inequality for x: -46 - 8x &gt; 22<br><br> A. X -8.5<br> D. X &gt; 8.5
    12·1 answer
  • PLS HURRY! RIGHT ANSWER EARNS BRANLIEST
    11·2 answers
  • A standard die is rolled. Find the probability that the number rolled is greater than 5. Express your answer as a fraction in lo
    15·2 answers
  • * GEOMETRY <br><br> please help me show the work for 9, 10, and 11!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!