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Solnce55 [7]
3 years ago
12

-2x + 9x What is the answer

Mathematics
2 answers:
Verdich [7]3 years ago
8 0

Answer: +7x

Step-by-step explanation: Since both terms contain an <em>x</em>, you can add them together by simply adding their coefficients. Coefficients are just your number in front of your variables. So if -2 + 9 = +7, -2x + 9x = +7x.

Blababa [14]3 years ago
7 0

Answer: 7x

<u>Remove "x" and add</u>

-2 + 9 = 7

<u>Add "x" back</u>

7 -----> 7x

Note: When adding/subtracting problems like these remove "x" and then add/subtract normaly. When you get your answer put x back.

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What is the value of x
Mashcka [7]

Answer:

45

Step-by-step explanation:

Together, these two angles form a flat line which is 180 degrees

(x + 7) + (4x - 52) = 180

5x - 45 = 180

    + 45    + 45

5x = 225

x = 45

4 0
2 years ago
Read 2 more answers
What is the exact value of the expressions the square root of 180 − the square root of 125 the square root of 5 ? simplify if po
joja [24]
\sqrt{180}-\sqrt{125}+\sqrt5=\sqrt{36\cdot5}-\sqrt{25\cdot5}+\sqrt5\\\\=\sqrt{36}\cdot\sqrt5-\sqrt{25}\cdot\sqrt5+\sqrt5\\\\=6\sqrt5-5\sqrt5+\sqrt5\\\\=\boxed{2\sqrt5}
5 0
3 years ago
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Which absolute value function has a graph that is wider than the parent function, f(x) = |x|, and is translated to the right 2 u
Mariulka [41]
Case 1:  If we multiply f(x) = |x| by a fraction greater than zero and less than 1, the width of the resulting graph will increase.  If the vertex of the original function is moved 2 units to the right, then we'd replace |x| with |x-2|  Only the coefficient (3/4) satisfies the "wider graph" requirement here.

Next time you list answr possibilities, please type them in only one per line, or separate them with commons, semicolons or the like.
4 0
3 years ago
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Anne borrowed $600 for 1.5 years. The yearly interest rate was 12%. How much interest did she owe at the end of 1.5 years?
tigry1 [53]
600(1.5)(.12)

Multiply them all together...

=$108

She owes $108 in interest at the end of 1.5 years.
5 0
3 years ago
Read 2 more answers
6. Decrease 120 by 40%​
Andrew [12]

Answer:Percent ≈ 66.6667

Step-by-step explanation:

To calculate the percent of any number, you multiply the value (n) by the percent (p) and then divide the product by 100 to get the answer, like this:

(n × p) / 100 = Answer

In our case, we know that the initial value (n) is 120 and that the answer (amount of decrease) is 80 to get the final value of 40. Therefore, we fill in what we know in the equation above to get the following equation:

(120 × p) / 100 = 80

Next, we solve the equation above for percent (p) by first multiplying each side by 100 and then dividing both sides by 120 to get percent (p):

(120 × p) / 100 = 80

((120 × p) / 100) × 100 = 80 × 100

120p = 8000

120p / 120 = 8000 / 120

p = 66.6666666666667

Percent ≈ 66.6667

That's all there is to it! The percentage decrease from 120 to 40 is 66.6667%. In other words, if you take 66.6667% of 120 and subtract it from 120, then the difference will be 40.

8 0
2 years ago
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