MATHEMATICS MIDDLE SCHOOL

Solve:
-3 (x + 5) = -9
x=?

Answers

Answer 1
Answer:

Answer:

x=-2

Step-by-step explanation:

-3 (x + 5) = -9

Divide each side by -3

-3 (x + 5)/-3 = -9/-3

x+5 = 3

Subtract 5 from each side to isolate x

x+5-5 = 3-5

x=-2

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Solve for x

3x + 2 + x = x + 5

Answers

Step-by-step explanation:

3x + 2 + x = x + 5 \n 4x + 2 = x + 5 \n 4x - x = 5 - 2 \n 3x = 3 \n \n x = (3)/(3) \n \n x = 1

Find the area of the kite in square centimeters, 8cm 3.5cm 4.5cm 3.5 cm

Answers

Answer:

43.75

Step-by-step explanation:

(8*3.5)/2 + (8*3/5)/2 + (4.5*3.5)/2 + (4.5*3.5)/2 =

8*3.5 + 4.5*3.5 = 28 + 15.75 = 43.75

The picture helped a lot

Answer:43.75

Step-by-step explanation:

Simplify this problem 3(x + 1) -2x=

Answers

The answer is x + 3

Step 1: Expand ( 3x + 3 - 2x )

Step 2: Collect like terms ( (3x - 2x) + 3 )

Step 3: Simplify ( x + 4 )

Let me know if I helped :)

Which value of n will make the rational number -17/n an integer? (A 18) (B 102) (C 170) (D None of the above)

Answers

none of them make it an integer because none make it a whole number
d. none of the above are correct 

How many times greater is the value of the 6 in 560,984 than the value of the 6 in 85,560?

Answers

Each place value is 10 times higher than the one below it. The 6 in 560,984 is 3 place values ahead of the 6 in 85,560, and 10*10*10=1000, so it is 1000 times greater

What is the experimental probability that the sum of the next two numbers rolled is greater than 5

Answers

the probability is 3/5 4/5
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