Answer:
x=12
Step-by-step explanation:
It is a textbook 3:4:5 triangle. The hypotenuse is 15 (5*3), and the base is 9 (3*3). Since they both share a common factor of 3, the 3rd side would be 4*3, which is 12.
The area of the house is the amount of space on the house.
- The length of the addition is x + 20
- The area of the original house is

<h3>The length of the addition</h3>
The area of the addition is given as:

Expand

Factorize

Factor out x + 20

The width of the addition is x - 10.
Hence, the length of the addition is x + 20
<h3>The area of the original house</h3>
The dimension of the original house is
x + 20 by x + 10
So, the area is:

Expand

This gives

Hence, the area of the original house is 
Read more about areas at:
brainly.com/question/24487155
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multiplication is first (in this case) and then addition
2 x 8 = 16
16 + 2 = 18
18 is your answer
hope this helps
Answer:
25/7 acres or 3 4/7 acres
Step-by-step explanation:
The sold 2/7 of the land.
1 - 2/7 = 7/7 - 2/7 = 5/7
They have 5/7 of the land left.
5/7 of 5 acres = 5/7 × 5 acres = 25/7 acres = 3 4/7 acres
Answer:it is approximately 4 dollars and 6 cents
Step-by-step explanation: