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
aivan3 [116]
3 years ago
10

The length of a rectangle is 3 inches longer than its width. If the perimeter of the rectangle is 54 inches, find it’s length an

d width.
Mathematics
1 answer:
dangina [55]3 years ago
6 0

Answer: Length = 15, Width = 12

Step-by-step explanation:

L = length

W = width

L = W+ 3

perimeter = 2L + 2W

54 = 2(W+3) + 2W

54 = 2W + 6 + 2W

54 = 4W + 6

54 - 6 = 4W

48 = 4W

W = \frac{48}{4}

W = 12

now to find the length, plug the width into the equation L = W + 3

length:

L = W+3

L=12 +3

L = 15

You might be interested in
Im going to give 15 points for this question please answer it
Gnom [1K]
I know, you have to divide 90 by what ever the length is, then you have to figure out where the points are. So it should be.... D!!!
8 0
3 years ago
(1,3), m = - 3/4 using that as a fraction write an equation in point-slope form
sukhopar [10]
Y=mx+b   m=-3/4  (1,3)
3=-3/4(1)+b
3=-3/4+b
b=3 3/4

y=-3/4+3 3 3/4
7 0
3 years ago
Solve for x.
statuscvo [17]

Answer:

The Answer is: x = 1.444 with repeating 4.

Step-by-step explanation:

212x - 34(2x + 5) = 38

212x - 68x - 170 = 38

212x - 68x = 38 + 170

144x = 208

x = 208/144 = 52/35 or 1.444

Proof:

212(1.444) - 34(2(1.444) + 5) = 38

306.128 - 34(7.888) = 38

306.128 -  268.192 = 37.936 or approximately 38

Hope this helps! Have an Awesome Day!!  :-)

7 0
3 years ago
Which of the following is an x intercept of the function f(x)=x^2-81?
Doss [256]
<span>x intercept when f(x) = 0
so
</span><span>x^2-81 = 0
x^2 = 81
x = + 9 and x = -9

Answer
</span><span>C -9</span>
4 0
3 years ago
Read 2 more answers
Which set of numbers is not closed under multiplication ?
kodGreya [7K]

Answer:

D). irrational numbers

Step-by-step explanation:

The irrational numbers are the set of number which can NOT be written as a ratio (fraction). Decimals which never end nor repeat are irrational numbers. Irrational numbers are "not closed" under addition, subtraction, multiplication or division.

4 0
3 years ago
Read 2 more answers
Other questions:
  • If 12 gallons cost $36. How much would 8 gallons cost?
    7·2 answers
  • 5x + y = 9<br> 10x − 7y = −18
    14·1 answer
  • The function m=30-3r represents the amount m (in dollars) of money you have after renting r video games.
    11·1 answer
  • Which function has only one x-intercept at (-6, 0)?
    9·2 answers
  • Y= 4x + 1
    8·1 answer
  • 7. A classroom has 7 blue chairs, 5 green
    8·2 answers
  • Solve for b. 48=56+8b
    8·1 answer
  • What is the average rate of change of f over the interval -7 &lt; or equal to x Give an exact number
    6·1 answer
  • Assume we have two lines which are parallel. If one line has a slope of -1/11
    13·1 answer
  • 60 points!!! Please answer immediately and the entire page please I will also give you five stars
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!