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joja [24]
3 years ago
5

the combined area of two squares is 45 square centimetres each side is twice as long as a side of the other square what length o

f each side of the larger square
Mathematics
1 answer:
Ostrovityanka [42]3 years ago
4 0

Answer:

Let the side of  one square be x.    Area = x*x = x²

Then the side of other square  would be 2x ,   Area = 2x*2x = 4x²

Combined area = x² + 4x²  = 5x²

This combined area = 45 cm²

you simplify

Therefore  5x²  = 45   Divide both sides by 5

                 x²  =  45/5

                 x²  = 9        Take square root of both sides

                 x   =  √9

                 x  = 3

Length of larger square is 2x  = 2*3 = 6 cm

Length of larger square = 6cm

Step-by-step explanation:

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8 0
3 years ago
A rectangle has an area of 96 sq ft if the width of the yard is 4 ft less than the length, what is the perimeter in ft of the ya
Veronika [31]
The area of a rectangle is obtained through the equation,
  
                                  A = L x W 

The width of the yard is 4 ft less than the length and may be expressed as L - 4. Length may be solved through the following steps,
   
                               A = (L)(L-4)   ; 96 = L(L - 4)    ; L = 12 ft

The length and width are 12 ft and 8 ft, respectively. Perimeter may be solved through the equation,
 
                                           P = 2 x (L + W)

Substituting the values of L and W
 
                                           P = 2 x ( 12 ft + 8 ft) = 40 ft

Therefore, the perimeter of the yard is 40 ft. 




6 0
3 years ago
A farm has chickens and cows. All the cows have 4 legs and all the chickens have 2 legs.
lora16 [44]

Answer:

21 chickens

Step-by-step explanation:

10×4=40

82-40=42

42÷2=21

3 0
3 years ago
ILL MARK U BRAINLIEST!!!!
Helen [10]

Answer:

Step-by-step explanation:

(40,5) and (0,0) are points on the line.

Slope of line = (40 miles)/(5 minutes) = 8 Mikes per minute

4 0
3 years ago
Read 2 more answers
Pls help I will mark brainlist
Marta_Voda [28]
We know they combine to 2,977 grams. The puppies weight the same
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8x + 1077 = 2977
8x = 1900, x = 237.5 grams
It would be around 250 grams
6 0
2 years ago
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