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
Naddika [18.5K]
3 years ago
11

A rectangle has a length of 12 feet and a perimeter of 40 feet

Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0

Answer:

x= 8 feet   (answer : A)

Step-by-step explanation:

hello :

the perimeter is : P= 2(x+y)       y : the length      x : the width

P=40   and  y = 12    calculate : x

2(x+12) =40

divid by 2 :  x+12 =20

x=20-12

x= 8 feet

You might be interested in
Let f(x)=3x .
kobusy [5.1K]
You are multiplying the 3x by 6 
the last choice is correct
8 0
3 years ago
Read 2 more answers
Write three fractions between 3/10 and 9/10​
Norma-Jean [14]

Answer:

4/10, 5/10, 6/10 are all fractions in between 3/10 and 9/10

Step-by-step explanation:

8 0
4 years ago
one bag of grapefruit weighs4 pounds. How many pounds of grapefruit are in bags? O 82 pounds Ol pounds o 11 unds O 182 pounds​
Citrus2011 [14]

Answer:

Step-by-step explanation:

The bag weighed 31116 pounds. Explanation: First, we need to get all three of our fractions under a common denominator. To do this, let's first change

8 0
3 years ago
Calculate the mean of the data set
barxatty [35]

Answer:

10

Step-by-step explanation:

10

8 0
3 years ago
HELP ASAP ALL THREE PLEASE 1. if a cyclic alkene has 12 carbon atoms, how many hydrogen atoms does it have 2.if a cyclic alkene
Marina CMI [18]

Answer:

1. 24

2. 6

3. No

Step-by-step explanation:

The formula for cyclic alkene is C^{n} H^{2n}, so if it has 12 carbon atoms, it will have double the amount of hydrogen atoms, therefore, 24 hydrogen atoms.

The same works in reverse. If we have 12 hydrogen atoms in this, then there will be half the amount of carbon atoms, therefore 6.

Since the relationship between Carbon and Hydrogen here is double and half, odd numbers can't be divided by 2 and end up with a whole number, so an odd number of hydrogen atoms is not possible.

Hope this helped!

5 0
3 years ago
Other questions:
  • How can you use a number line to model and compare positive and negative rational numbers
    15·1 answer
  • What decimal is represented by this expanded form?
    12·1 answer
  • Which is the last sentence of the proof?
    6·2 answers
  • You've won a new prize! Go to your game board.
    8·2 answers
  • Write an inequality to model the situation. Thomas earned $44 or more.
    6·2 answers
  • I NEEED SOOOME HEEELPPP
    6·1 answer
  • can anyone help me ASAP
    10·1 answer
  • Find the value of X for each figure. <br><br>(Giving brainliest)
    13·2 answers
  • Triangle C has vertices (2, −1), (2, 2), and (1, −1). Which triangle is similar to triangle C? Triangle X with vertices (−2, 2),
    12·1 answer
  • Gerald is looking to sell his motorcycle. He compiles these prices from the newspaper for bikes just like his: $2,000; $18,900;
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!