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goblinko [34]
3 years ago
10

9. Distribute the expression -3(-8b-9)

Mathematics
2 answers:
jenyasd209 [6]3 years ago
3 0

Answer: 24b-(-27)

Step-by-step explanation:

-3x-8b= 24b

-3x9=-27

Brums [2.3K]3 years ago
3 0
-3(-8b-9)

-3*-8b=24b

-3*-9=51

24b+51
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Five times the smallest of three consecutive odd integers is seven more than twice
Fantom [35]

Answer:

5, 7, 9

Step-by-step explanation:

Using the information given we get:

5x-7=2z

x+2=y\\y+2=z\\x+4=z

5x-7=2(x+4)\\5x-7=2x+8\\

<em>Add 7 to both sides</em>

5x=2x+15

<em>Subtract 2x from both sides</em>

3x=15

<em>Divide both sides by 3</em>

x=5

Using these equations:

x+2=y\\y+2=z\\x+4=z

and

x=5

We get:

x=5\\y=7\\z=9

4 0
3 years ago
if cathy myra and eva all take 2.0 h to walk from their house to their school at a rate of 1.0 m/s how far is their school from
ruslelena [56]
7200 m away. Plz give brainliest!
4 0
3 years ago
I need help asap someone please help me asap
Delvig [45]

Slope = \frac{y_{2} -y_{1}  }{x_{2} -x_{1}  }

So taking 2 points (0,0) and (60,120)

we have slope = (120-0)/(60-0) = 120/60 = 2

general equation of linear graph is y=mx+b with m be the slope

so y=2x+b

Now to find b, just plug any point of the graph in, such as (0,0)

so we get something like 0=2(0) + b => b=0

So your equation is y=2x

3 0
3 years ago
? + (-7) = 3 Please answer soon
ser-zykov [4K]
10+(-7)=3. Hope this helped :))
5 0
3 years ago
What is 30=8+4(z-2) step by step?
Stolb23 [73]

30=8+4(z-2)

Distribute 4 through the parentheses

30=8+4z-8

Eliminate the opposites

30=4z

Swap the sides of the equation

4z=30

Divide both sides of the equation by 4

4z÷4=30÷4

Any expression divided by itself equals 1

z=30÷4

or write the division as a fraction

z=30/4

copy the numerator and denominator of the fraction

30=2x3x5

4=2x2

Write the prime factorization of 30

Write the prime factorization of 4

30=2          x3x5

4=2x2

    2

Line up the common factors in both lists

Copy the common factors

Since there is only one common factor, the common factor 2 is also the greatest common factor

30÷2/4÷2

  2

Divide 30 and 4 by the greatest common factor 2

15/4÷2

Divide the numbers in the numerator

15/2

Divide the numbers in the denominator

15/2

The simplified expression is 15/2

That's it. hope it wasn't too hard to understand?

7 0
3 years ago
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