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
weeeeeb [17]
2 years ago
8

By decreasing each dimension by 1 unit, the area of a rectangle deceased from 40 square feet to 28 square feet. Find the percent

decrease in area.
Mathematics
1 answer:
arsen [322]2 years ago
8 0

Answer:

30%

Step-by-step explanation:

Initial area is 40 square feet

Final area is 28 square feet

Difference between the initial and final areas will be 40-28=12 square feet

Taking the initial area as the base area and expressing the area change in percentage then the percentage decrease will be equivalent to

\frac {12\times 100}{40}=30

Therefore,  the decrease in area expressed as a percentage is equal to 30%

You might be interested in
T=an+b solve for b please help
Leni [432]
T=an+b
subtract an from each side
b=t-an
5 0
3 years ago
Read 2 more answers
Plz, Help me with this question!
guapka [62]

Answer:

G. 12

Step-by-step explanation:

Rachel = x

Trina = y

x = 2y - 6

x = (2x9) - 6

x = 18 - 6

x = 12

6 0
3 years ago
Factor (x^2-9) (x^2-16)
MrRissso [65]

Answer:

( x - 3 )( x + 3 ) ( x - 4 )( x + 4)

Step-by-step explanation:

( x^2 - 9 ) ( x^2 - 16 )

( x - 3 )( x + 3 ) ( x - 4 )( x + 4)

Hopefully this helps!

Brainliest please?

3 0
2 years ago
Read 2 more answers
Solve for the variables
Vesna [10]

Answer:

P  = 32

x  = 35

Step-by-step explanation:

For the first diagram,

 The two angles given are corresponding angles. Corresponding angles are equal;

 So;

    the first angle is a right angle triangle;

  90 =  3P - 6

       3P  = 90 + 6

        3P  = 96

          P  = 32

For the second diagram;

The sum of those two angles is 180°

      (x + 75) + 2x = 180

      x + 2x + 75  = 180

          3x + 75  = 180

          3x  = 180 - 75

         3x  = 105

          x  = 35

5 0
2 years ago
Bill needs to edge his yard with the dimensions in the shape below. What area will he have walked after completing his edging? R
meriva

Answer:

37.8

Step-by-step explanation:

The distance is the addition of all sides of the figure. Then, we need to find the length of the diagonal (d). To do that we have to make a right triangle with height (h) = 5 m. Given that the top length is 12 m and the bottom length is 15 m, the base (b) of the triangle is 15 - 12 = 3 m.

Using Pythagorean theorem:

d² = h² + b²

d² = 5² + 3²

d = √34

d = 5.8 m

Therefore, the distance he will have walked is 5.8 + 12 + 15 + 5 = 37.8 meters

Credits to:<u>jbiain</u>

8 0
3 years ago
Other questions:
  • 10 points! What is the slope of the given line?
    7·1 answer
  • What is the length h of the right triangle, rounded to the nearest tenth?
    11·2 answers
  • Betty is canning 104 pears and 126 apples separately. Each jar holds 8 pears or 6 apples. How many jars does Betty need
    8·1 answer
  • A star athlete at a local college scored a total of 649 points during the 31 basketball games she played in the 2004 regular sea
    6·1 answer
  • Hi help with these please and thank yu? :)
    7·1 answer
  • Find an equation of the line having the given slope and containing the given point.
    8·1 answer
  • Can someone please help
    5·1 answer
  • If r/s = 22 and the value of r is 242, what is the value of s
    12·2 answers
  • Question in link. Please help :(
    15·1 answer
  • Healthy Grains is an organic food company that makes several different kinds of trail mix. The company's Sweet and Salty trail m
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!