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3 years ago

Simplify: 3(2x+7)-2(x+5)

Mathematics

2 answers:

pishuonlain [190]3 years ago

8 0

6x+21 -2x+10
4x 31
7.75=x

MAXImum [283]3 years ago

6 0

Answer:

4x + 11

Step-by-step explanation:

3(2x + 7) - 2(x+5)

*use distributive property to multiply what's in the parentheses by what's outside of the parentheses*

6x + 21 - 2x - 10

*combine like terms*

6x + 11 -2x

4x + 11

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Simplify. 3x – 8(x + 4)

mel-nik [20]

Answer:

-5x - 32

Step-by-step explanation:

Use distributive rule : a(b + c) = ab + ac

3x - 8(x + 4) =3x + x*(-8) + 4*(-8)

= 3x - 8x - 32 {combine like terms}

= -5x - 32

4 0

3 years ago

Find the distance between the points given.

Y_Kistochka [10]

So the answer is (C)

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3 years ago

The area of a square is 160x^5y^2. What is the length of one side?

Aleksandr [31]

------------------------------------------------------------------
Formula of area of square
------------------------------------------------------------------
Area of square = Length x Length
Area of square = Length2

------------------------------------------------------------------
Given information
------------------------------------------------------------------
Area of square = $160x^5y^2$

------------------------------------------------------------------
Find length
------------------------------------------------------------------
$length^2 = 160x^5y^2$
$length = \sqrt{160x^5y^2}$
$length = 4y\sqrt{10x^5}$

-----------------------------------------------------------------
$\Longrightarrow \ Answer: \boxed {\boxed{ 4y\sqrt{10x^5} }}
$
-----------------------------------------------------------------

5 0

3 years ago

Sam ran 63,756 feet in 70 minutes. What is Sam's rate in miles per hour? ( there are 5,280 feet in one mile.)

umka21 [38]

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70 minutes = 1.16666= 1.17 hrs

rate is 12.075 miles/1.17 hrs

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3 years ago

Read 2 more answers

What is the integer -4 - (-5) = - 9?

oksano4ka [1.4K]

Answer:

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Step-by-step explanation:

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