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
nlexa [21]
3 years ago
15

The perimeter of a rectangle is P= 2L +2W, where L is the length and W is the width. If the perimeter is 200 feet and the length

is 40 feet more than the width, what are the dimensions?
Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer:

Length - 70

Width - 30

Step-by-step explanation:

Let the width be x

Length is 40 more than width which makes length = x + 40

Perimeter = 2L + 2W

2(x + 40) + 2(x)

Open brackets

2x + 80 + 2x = 4x + 80

Perimeter = 200

200 = 4x + 80

4x = 200 - 80

4x = 120

x = 120/4

x = 30

Width = 30

Length = x + 40 = 70

Give brainliest

You might be interested in
Solve this equation -9-6+12h+40=22<br><br> A. h=24<br> B. h= -4/7<br> D. h= -4
BartSMP [9]
-9-6+12h+40=22
12h+25=22
12h=-23
h=-23/12
8 0
3 years ago
Read 2 more answers
If you multiply me by 7 add 1 and then divide by 4 you get 9 what number am I?
labwork [276]
Put the number as x and translate the English into math;
(7x+1)/4=9
Then solve for x
8x+1=36
8x=35
x=4.375 or 4 3/8
Hope this helps. 
3 0
4 years ago
Read 2 more answers
What does it mean to find the value of a numerical or algebraic expression?
Alenkinab [10]

Answer:

Evaluate. To find the value of a numerical or algebraic expression. Variable. a symbol (like x or y) that is used in mathematical or logical expressions to represent a variable quantity.

Step-by-step explanation:

Hope this help!!

3 0
3 years ago
A population of size 320 has a proportion equal to .60 for the characteristic of interest. What are the mean and the standard de
tiny-mole [99]

Answer:

The answer is c.) 0.6 and 0.14

Step-by-step explanation:

Given population has a size of 320.

The proportion of population = 0.6

The mean of population, p = 0.6

The mean of sample, \hat{p}= 0.6

Therefore \hat{q}  = 1 - \hat{p} = 1 - 0.6  = 0.4

The sample size  = 12

Therefore the standard deviation of the sample,

s = \sqrt{\frac{\hat{p}(1 - \hat{p})}{n} }  = \sqrt{\frac{0.6 \times 0.4}{12} }  = 0.1414

The mean and the standard deviation for a sample size of 12 are 0.6 and 0.14 respectively.

The answer is c.) 0.6 and 0.14

6 0
3 years ago
Help me please with this question
Inessa05 [86]

Answer:

the first one

Step-by-step explanation:

its this one because cest logique

3 0
3 years ago
Other questions:
  • Why do you need distributive property
    10·1 answer
  • The variables x and y vary directly. if one pair of the values is x = 3 and y = 12, write an equation that shows the relationshi
    5·2 answers
  • Please help me fast i am giving 14 points for 5 questions. (Geometry) Thank you so much!
    5·1 answer
  • What is the product of 10 and 9radical 72 in simplest radical form
    5·1 answer
  • According to the _________ concept, a firm must (1) find out what customers want and provide it, (2) make sure everyone in the o
    14·1 answer
  • Help me pls offering good points
    10·1 answer
  • Simplify (7p)^3 please thanks!
    13·1 answer
  • A line's slope is 3, and it's y-intercept is 2. What is its equation in slope-intercept form?
    5·1 answer
  • Find the 15th term of the geometric sequence 180, 90, 45,...
    5·1 answer
  • Graph and analyze the function f(x)= 1/x-2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!