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Crank
3 years ago
11

What is the answer to 3(4g+6)=2(6g+9)

Mathematics
2 answers:
hjlf3 years ago
8 0
Use the distributive property to get 12g+18=12g+18
since both sides equal each other, your answer is 0=0 & its an identity :)
Mariulka [41]3 years ago
3 0

Answer:

Solution: All real numbers.

Step-by-step explanation:

3(4g+6)=2(6g+9)\qquad|\text{use distributive property}\\\\(3)(4g)+(3)(6)=(2)(6g)+(2)(9)\\\\12g+18=12g+18\qquad|\text{subtract 12g from both sides}\\\\18=18\qquad TRUE

It's an identity equation.

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Please help with this question.
Rzqust [24]
(cos Ф -cos Ф)² + (cos Ф + cos Ф)²

Firstly: (cos Ф -cos Ф)² = 0² = 0

Secondly :(cos Ф + cos Ф)² = (2cos Ф)². = 4. (cos Ф)² = 4cos² Ф

Mind you when you raise a cosine (or sin or tan...) to the n power, the n power should affect the cosine only and NOT the angle Ф

4 0
3 years ago
Araceli uses 6.1 pints of blue paint and white paint to paint her bedroom walls. 3/5 of this amount is blue paint, and the rest
kramer

Answer:

2.44 pints of white

Step-by-step explanation:

blue=3/5

white=2/5

6.1*0.4=2.44

3 0
2 years ago
Choose the best definition for the term: factor. *
pashok25 [27]
A. One or two or more numbers, algebraic expression, or like that when multiplied together produce a given product.

Hope this helps :)
8 0
3 years ago
-⅕ (10-5+25x)<br> Please help!
Yanka [14]

Answer:

--\frac{1}{5} * (5+25x)\\-\frac{1}{5} *5-\frac{1}{5}(25x)\\-1-\frac{1}{5}(25x)\\-1 -1 (5x)\\01-5x

Step-by-step explanation:

7 0
3 years ago
The cost of 11 dvds and 7 cds is 172.50 and the cost of 10 dvds and 7 cds is 155.80. How much does a cd and dvd cost?
AleksandrR [38]

Answer:

The question has a mistake

Step-by-step explanation:

11d+7c= 172.5

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By subtraction;

1d+ 0c = 16.7

1d = 16.7

11×16.7+7c=172.5

7c = 172.5-11*16.7

You will get a negative answer yet the cost cannot be negative.

5 0
3 years ago
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