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Alika [10]
2 years ago
11

Murphy and Naryam do their homework together. When they get to 9 - (-8) they get different answers. Murphy claims that the answe

r is 17 and Naryam claims the answer is -1. Who do you think is correct?
Mathematics
1 answer:
andre [41]2 years ago
8 0

Answer:Murphy is right

Step-by-step explanation: When there are two negitives right next to each other the cancel out so it turns into a positive make the question 9+8 making the answer 17.

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Pls help! will mark branliest!!! :)
Ket [755]

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 x^2 + 30x + 200

<h3>The length of the addition</h3>

The area of the addition is given as:

Area = x^2 + 10x - 200

Expand

Area = x^2 + 20x - 10x - 200

Factorize

Area = x(x + 20) - 10(x + 20)

Factor out x + 20

Area = (x -10)(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:

Area =(x + 20)(x + 10)

Expand

Area =x^2 + 20x + 10x + 200

This gives

Area =x^2 + 30x + 200

Hence, the area of the original house is x^2 + 30x + 200

Read more about areas at:

brainly.com/question/24487155

8 0
2 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Maurinko [17]

Answer:

616 square centimeters

Step-by-step explanation:

Area of a circle is equal to pi × r^2. In this case, they have asked that you substitute 3.14 or 22/7 for pi, so I will be using 22/7, instead.

Diameter is equal to 2r; to find the radius, simply divide 28 by two. This gives us a radius of 14.

Multiply 14 squared by 22/7:

(22/7)(14^2)

This gives us (22/7)(196); (4312/7); 616.

Therefore, the area of the circle is approximately 616 square centimeters.

8 0
2 years ago
Bruce collects stamps. He collected a total of 250 stamps. If 72% of the stamps he collected were foreign, how many other stamps
mestny [16]

Answer:

He collected 180 other stamps

Step-by-step explanation:

Sorry if it's wrong

5 0
2 years ago
Read 2 more answers
General admission tickets to the fair cost $3.50 per person ride passes cost an additional $5.50 per person parking costs $6 for
Ghella [55]
5, 3.50+5.50= 9 per person 6 parking so 51-6 for parking = 45 and 45/9= 5
8 0
3 years ago
What is the expanded form of the decimal 444.3? A) (4 x 100) + (4 x 10) + (4 x 1) + (3 x 1 10 ) B) (4 x 100) + (4 x 10) + (4 x 1
Tpy6a [65]

444.3 = (4 x 100) + (4 x 10) + (4 x 1) + (3 x 1 /10 )

Answer

A. (4 x 100) + (4 x 10) + (4 x 1) + (3 x 1 /10 )


6 0
2 years ago
Read 2 more answers
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