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
andreyandreev [35.5K]
2 years ago
13

if a rectangle's length is 2 x − 1 and the width is 4 x − 2 , write an expression for the perimeter and an expression for the ar

ea.
Mathematics
1 answer:
miskamm [114]2 years ago
6 0

Answer:

Step-by-step explanation:

2p/2 = 2x+7

1) 2x+7 -x - 5 =

width = x + 2

2) 2p/2 = 21 in

x + 5 + x + 2 = 21

2x = 14

x = 7

lenght = 7 + 5 = 12 in

width = 7 + 2 = 9 in

3 )

A = (x+5)(x+2)

4)

A = 12 x 9 = 108

You might be interested in
:
valkas [14]

Answer:

20 home runs left to hit.

Step-by-step explanation:

Ok so 100%/20% is 5. Increment 5 home runs until you get to 100%. So, 20% =5, 40% = 10, 80% = 15, and 100% = 20

7 0
3 years ago
Read 2 more answers
You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00.
Naily [24]

Total deduction

  • 7.65+12+8
  • 19.65+8
  • 27.65%

Now

Earnings after deduction

  • 10-10(0.2765)
  • 10-2.765
  • 7.335$

Total hours:-

  • 640/7.335
  • 87.25
  • 87hours
7 0
2 years ago
Eloise made a list of some multiples of 8/5 write 5 fractions that can be in Eloise list
alexgriva [62]
This question is asking for a list of fractions, that when you pull out common factors, they will all simplify back to the 8/5 fraction.

So if 2 is the common factor, you multiply the numerator and denominator by 2.

2: (8*2)/(5*2)= 16/10

3: (8*3)/5*3)= 24/15

4: (8*4)/(5*4)= 32/20

5: (8*5)/(5*5)= 40/25

10: (8*10)/5*10)= 80/50

Eloise's Potential List:
16/10, 24/15, 32/20, 40/25, 80/50

If you simplify any of these fractions above, you will get 8/5 again.

To work backwards:
80/50: 10 goes into 80, 10 goes into 50= 8/5

16/10: 2 goes into 16, 2 goes into 10= 8/5

Hope this helps! :)
4 0
3 years ago
JUST HELP ME By what percent will the product of two numbers
Salsk061 [2.6K]

Answer:

The product of the original numbers: xy

The product of the altered numbers (.75x)(.5y), or 0.375xy

The product has decreased by 1 - 0.375, or 0.625, or 62.5%

6 0
3 years ago
If y = 8 cm, what is the area of the blue section of this shape?
Ivahew [28]

Answer:

56 cm squared

Step-by-step explanation:

First things first: Cop one triangle off the rectangle, and attach it to the other one, so the shape looks like a L

Now I can actually solve this:

The left side is 8 cm (because y = 8 cm)

The top is 10 cm

The middle is 6 cm

The inside left is 3 cm

And the very bottom is 2 cm

First, we'll solve for the newly constructed rectangle: 3 x 2. That equals 6.

Next, solve for the longer rectangle: 10 x 5. That's 50.

Now, add the two areas, and we get 56. So the area of the whole thing is 56 cm squared.

(Please keep in mind that I could be wrong, so double check it for me, thanks!)

7 0
2 years ago
Other questions:
  • A group of 20 dogs are at the dog park. Fourteen of the dogs have an average weight of 45 pounds. The remaining dogs have an ave
    7·2 answers
  • 7x + 4y = 5<br> 7x + 4y = 12
    6·1 answer
  • The following steps are used to write the polynominal expression 3(x+4y)+5(2x-y)
    6·1 answer
  • Solve the quadratic by factoring.<br> x^2-5x-31=5
    11·1 answer
  • Change 6 1/8 into an improper fraction.
    9·2 answers
  • Help me, please ( 10 points )
    6·2 answers
  • Select the correct pairs of triangles.
    9·1 answer
  • Please help!!!! I'll give brainlist
    6·2 answers
  • A plane flies 1225 miles with the wind in the same time it can fly 1100 miles into the wind. The speed of the plane in still air
    10·1 answer
  • If C=3m^{2}+4m+5C=3m
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!