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iris [78.8K]
3 years ago
6

Solve 3х - х + 2 = 12.a. -5b. 4c. 7d. 5​

Mathematics
2 answers:
DaniilM [7]3 years ago
6 0

Answer:

3x-x+2=12

2x+2=12

2x = 10

x=5

makvit [3.9K]3 years ago
4 0

Answer:

d

Step-by-step explanation:

Given

3x - x + 2 = 12, that is

2x + 2 = 12 ( subtract 2 from both sides )

2x = 10 ( divide both sides by 2 )

x = 5

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Why might you want to round to the nearest hundred rather than the nearest ten?
Eva8 [605]
Rounding to the nearest hundredth would equal a more accurate and precise answer since more decimals are present. Your answer would be even more accurate if you rounded to the nearest thousandth.
7 0
3 years ago
A movie theater designs two bags to hold 250 cubic inches of popcorn each.
grigory [225]

Answer:

5 inches

Step-by-step explanation:

Well two bags hold 250 cubic inches, which means one bag will hold 125 cubic inches.

Then you cube route 125 because its cubic inches.

\sqrt[3]{125} = 5

So I would think its five inches but I may be wrong <3

4 0
3 years ago
Find the missing lengths of the sides.
Anarel [89]

Given:

The figure of a right angle triangle.

a=b

Hypotenuse = 9\sqrt{2} in.

To find:

The missing lengths of the sides.

Solution:

In the given right angle triangle both legs a and b are equal, and hypotenuse is 9\sqrt{2} in.

Using Pythagoras theorem, we get

Hyponteuse^2=Base^2+Perpendicular^2

(9\sqrt{2})^2=(a)^2+(b)^2

81(2)=(a)^2+(a)^2                    [\because a=b]

81(2)=2(a)^2

Divide both sides by 2.

81=(a)^2

Taking square root on both sides.

\pm \sqrt{81}=a

\pm 9=a

Side cannot be negative. So,

9=a

Thus, the missing side lengths are a=9 in and b=9 in.

Therefore, the correct option is C.

6 0
3 years ago
A package of 4 red,white and blue hats costs $8. What is the unit rate
love history [14]

Answer:

$2/ hat

Step-by-step explanation:

Find the unit rate:

$ to hats

8 to 4

Divide by four to get the unit rate; over 1

2 to 1

So, $2 per hat

Hope this helps!

8 0
3 years ago
Read 2 more answers
5 1/10 divided by 1 1/5
hoa [83]
4.25 is the correct answer
5 0
4 years ago
Read 2 more answers
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