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2 years ago

25 points!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

marissa [1.9K]2 years ago

6 0

Answer:

cos 32° = 12/x

x = 14.15

Step-by-step explanation:

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What is x in 5x +(3-1)=12

olga2289 [7]

Answer:

x=2

Step-by-step explanation:

5x +(3-1) =12

5x +2 =12

5x =12-2

5x =10

x =10÷5

x =2

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2 years ago

Three times the sum of a number and two is equal to -9.

Svetllana [295]

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Step-by-step explanation:

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What is the answer for 52 divided by 8 with remainder

Sveta_85 [38]

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3 years ago

7+4(r+3)=9r-6 show work pls AND HELP ASAP

ivanzaharov [21]

$\: \: \: \: \: \:$

$= \: \: \: \: r = 5$

Step-by-step explanation:

$7 + 4(r + 3) = 9r - 6$

distribute 4 through the parentheses

$7 + 4r + 12 = 9r - 6$

add numbers

$19 + 4r = 9r - 6$

move the variable to the left hand side and change its sign

$19 + 9r = - 6$

move the constant to the right hand side and change its sign

$4r - 9 = - 6 - 19$

collect like terms

 $- 5r = - 6 - 19$ 

calculate the difference

$- 5r = - 25$

divide both sides of the equation by -5

 $= \: \: \: \: r = 5$ 

<h2>hope it helps</h2>

7 0

2 years ago