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3 years ago

What is the value of x in the equation −x = 4 − 3x + 6? 5 10 −5 −10

2 answers:

8 0

Combine like terms

-x = 4 + 6 - 3x
-x = 10 - 3x

Isolate the x, add 3x to both sides

-x (+3x) = 10 - 3x (+3x)

-x + 3x = 10

Simplify. Combine like terms

-x + 3x = 10

2x = 10

Isolate the x, divide 2 from both sides

2x/2 = 10/2

x = 10/2

x = 5

x = 5, or A is your answer

hope this helps

koban [17]3 years ago

3 0

The answer is 5 because first you would add 3x to both sides and then you would have 2x on the left so your equation now would be 2x=4+6 which we can simplify to 2x=10 then you divide both sides by two and you get 5. Hope this helps!

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What is the best approximation of the length of segment QS? (Note: cos 80° = 0.17)

matrenka [14]

Answer: $QS=11.8cm$

Step-by-step explanation:

1. You have the following information:

- The lenght of $RS$ is 2 centimeters.

- The angle m∠S=80°.

- Cos80°=0.17

2. Therefore, you can calculate the lenght of the segment $QS$ as following:

$cos80=\frac{adjacent}{hypotenuse}$

$adjacent=2cm\\hypotenuse=QS\\cos80=0.17$

3. Substitute values and solve for $QS$ :

$0.17=\frac{2cm}{QS}\\QS=\frac{2cm}{0.17} \\QS=11.76cm$

4. To the nearest tenth:

$QS=11.8cm$

6 0

3 years ago

Malia split up the large container of salsa that she bought equally into 5 bowls to place around her house for the party. If eac

Nitella [24]

42.5 ounces is the answer

i hope this helps :)

Step-by-step explanation:

8.5*5=42.5 ounces

7 0

3 years ago

Read 2 more answers

Find the result of 5/12 X (7/5 +1)

Shtirlitz [24]

Answer:

Step-by-step explanation:

$\frac{5}{12} \times ( \frac{7}{5} + 1) \\ \frac{5}{12} \times ( \frac{7 + 5(1)}{5} ) \\ \frac{5}{12} \times \frac{12}{5} \\ \frac{1}{1} = 1 \\$

3 0

2 years ago

If y varies directly as x, and y is 180 when x is n and y is n when x is 5, what is the value of n? A.6 B.18 C.30 D.36

ch4aika [34]

180 is 6x larger than 30, and 30 is 6x larger than 5. so y is 6x larger than x, and n is 30

7 0

2 years ago

Did I do this correctly?

lorasvet [3.4K]

Answer:

No, The answer should be 240

Step-by-step explanation:

The first step to finding the Surface Area was done well and was right but you got confused when trying to add the area of each shape
There is 3 Rectangles and 2 Traingles.
Let's start with the area of the triangles. 1/2bh is the formula for finding area of Traingles. 1/2(4)(6) = 12. We have two Traingles so that would be 24.
Now we have three rectangles with different lengths we need to calculate.
Rectangle 1 = 12 * 8 = 96
Rectangle 2 = 12 * 6 = 72
Rectangle 3 = 12* 4 = 48
24+96+72+48 = 240.
So, the surface area of the rectangular prisim is 240

6 0

2 years ago