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RoseWind [281]
2 years ago
15

Your family has decided to put a rectangle patio in your backyard similar to the shape of your backyard. Your backyard has a len

gth of 40 feet and a width of 20 ft the length of your patio is 12 feet. Find the perimeter of your new patio.
Mathematics
1 answer:
Fudgin [204]2 years ago
8 0

Answer:

The answer is 80, give me brainliest answer:)

You might be interested in
The concentration of the mixture obtained by mixing two solutions, A and B, is 6 2/3 %. The concentration of the second mixture
Nuetrik [128]

Answer:

Concentration of solution A = 23%

and concentration of solution B = 2%

Step-by-step explanation:

Lets get started

lets say that we concentration of solution A be x% and concentration of second solution be y%

we also know that first mixture is obtained by mixing them in ratio of 2:7

so linear equation representing this situation can be written as:

2(x%)+7(y%)= 9(6.66%)    

changing percentage to decimal we get,

.02x+.07y=9(.0666)

.02x+.07y = 0.6          (equation 1 )

similarly , second mixture is obtained by mixing them in ratio of 7:3

so linear equation can be written as:

7(x%)+3(y%) = 10(16.7%)

.07x +.03y = 1.67     (equation 2)

solving equations 1 and 2  we get

x =  23 and y = 2

so concentration of solution A = 23%

and concentration of solution B = 2%

That's the final answer

Hope it was helpful !!




8 0
3 years ago
Samiya bought a tree 3 inches long. Each year, the tree expected to grow 5 inches. How long (How many years) it takes the tree t
Vinil7 [7]

Answer:

19 years

Step-by-step explanation:

Initial height of tree when Samiya bought the tree = 3 inches

Growth in the height of tree every year = 5 inches

Number of years = y

Growth in the height of tree in y years = 5 inches multiplied by number of years

Growth in the height of tree in y years = 5y inches

To find:

Number of years taken by the tree to be 8 ft or 96 inches.

Solution:

The equation for height of tree after y years can be written as:

3 + 5y which is to be compared with 96 inches.

Therefore, the equation is:

3 + 5y = 96\\\Rightarrow 5y=93\\\Rightarrow y \approx 19

Therefore, it will take <em>19 years</em> for the tree to reach a height of 96 inches.

4 0
3 years ago
Solve for the unknown value in simplest form 2/4/5 = x/3/10
Katarina [22]

Answer:

x=3/4

Step-by-step explanation:

4 0
3 years ago
Which equation demonstrates the commutative property?
kakasveta [241]

Answer:

b c

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
5y2 + y + 2y2 – 7y - 5y2 + 4x<br> How to simplify
Damm [24]
Combine like terms to get 2y2-2y+4x
3 0
3 years ago
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