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
djyliett [7]
3 years ago
14

Here is a rectangle which has a width of x cm. x cm

Mathematics
1 answer:
miskamm [114]3 years ago
6 0

Answer:

278.25 cm2

Step-by-step explanation:

If the width of the rectangle is x (cm), as the length is 8cm longer, so that the length of the rectangle is: x + 8 (cm).

In the attached image, we can see the length of each side. Total length of the sides are 90 cm.

=> (x + x + 8) + x + 8 + (x+8) + (x + x + 8) + x + 8 + (x +8) = 90

=> 8x + 48 = 90

=> 8x = 90 - 48 = 42

=> x =42/8 = 5.25 (cm)

=> The width of the rectangle is 5.25cm

=> The length of the rectangle is: 5.25 + 8 = 13.25 cm

=> The area of one rectangle is: Length x Width = 5.25 x 13.25 = 69.5625 cm2

As the 8-sided shape is made from 4 rectangles, so that:

Area of 8 sided shape = 4 x Area of the rectangle = 4 x 69.5625 = 278.25 cm2

You might be interested in
Solve the system of equations.<br> 3x+4y=−23<br> x=3y+1<br> x=<br> y=<br> ​
Romashka-Z-Leto [24]

Answer:

i think  {x,y} = {-5,-2}  

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Uni made a model of a 1970 Ford Mustang using a scale of .5 inches = 9 in. If the actual car is 15 ft long, how long is the mode
kykrilka [37]

Answer:

The model car is 10 inches long

Step-by-step explanation:

To solve this question, we use conversion of units

Feet to inches.

Each feet has 12 inches.

The car is 15ft long.

So the car has 15*12 = 180 inches.

.5 inches = 9 in.

Rule of three

.5 inches - 9 inches

x inches - 180 inches

9x = 180*0.5

9x = 90

x = \frac{90}{9}

x = 10

The model car is 10 inches long

7 0
3 years ago
You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 fee
vladimir2022 [97]
Well I'm just doing some random math so it might be 300?
5 0
3 years ago
The lines below are parallel. If the slope of the green line is -2, what is the slope of the redline?
scoray [572]
D. -2, if the lines are parallel then the slope is the same but the y-int is different
3 0
2 years ago
Round to 1 significant figure and estimate 423 x 764
Elden [556K]

Answer:

300,000

Step-by-step explanation:

423 x 764 = 323,172

8 0
1 year ago
Other questions:
  • Can someone explain the steps to solve number two?
    6·1 answer
  • you had $22 to spend on three pretzels. After buying them you had $15.70.How much did each pretzel cost?
    12·2 answers
  • Which number is a solution of the inequality? 10.6 &lt; b
    8·1 answer
  • Anyone know the answer
    15·1 answer
  • Find the measure of z
    14·2 answers
  • The age of father is a two digit number. If 5 is added to the double of the digit in the tenth place of father's age will be the
    10·1 answer
  • What the number in two other forms for 4.293?
    9·1 answer
  • if the spinner below is spun once, what is the probability that it lands on a shaded space or a letter?
    15·1 answer
  • "Carlos drew a triangle with sides 8 inches, 15 inches and 17 inches. Did he draw a right triangle?"
    9·2 answers
  • In the past month, Ryan has had five pizzas delivered. He kept a record of how long it took to get the pizzas: 35 minutes, 25 mi
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!