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horsena [70]
3 years ago
8

Which one is the answer? Answer these two

Mathematics
2 answers:
kirill [66]3 years ago
8 0

Answer

Expressions 4(x+5) and 5(x+4) are Equivalent

Expressions 5(2m+2) and 10m+10 are not equivalent

Step-by-step explanation:

Heres why,

4(x+5) and 5(x+4)

4 times x =4x, so multiply 4x by 5 which should give you 20.

and multiply 5 to x which would be 5x and multiply that to 4 which would be 20, they match up so they are Equivalent.

5(2m+2) and 10m+10

times 5 to 2m to get 10m and times 10m by 2 to get 20.

10m+10 = 1 which they are not equivalent

just olya [345]3 years ago
7 0

Answer:

x = 0

Step-by-step explanation:

<em>4 (x+5) = 5 (x+4)</em>

<em>4 (x+5) = 5 (x+4)4x+20 = 5x+20</em>

<em>4 (x+5) = 5 (x+4)4x+20 = 5x+205x - 4x = 20-20</em>

<em>4 (x+5) = 5 (x+4)4x+20 = 5x+205x - 4x = 20-20x = 0</em>

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Step-by-step explanation:

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Step-by-step explanation:

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There are twelve shirts in your closet, five blue and seven green. Four of the blue shirts and one of the green shirts fit well.
uranmaximum [27]

Answer:

  • P (blue or too big) = 11 / 12

Explanation:

A two way table permits to represent the situation clearly and find the answser is an easy way.

The two way table is that results from the given information is:

Initial information:

                     Blue           Green         Total

Fit well             4                  1                 ?

Too big            ?                   ?                ?

Total               5                   7                12

Now by subtraction and addition you can fill the unknown fields:

                     Blue           Green         Total

Fit well             4                  1                5

Too big            1                   6                7

Total                5                   7                12

Now, you can see that there are 5 blue and 7 too big shirts, but the total number of them is 5 + 7 - 1 (because one of the too big shirts is also blue).

Then, the number of shirts being blue or too big is 5 + 7 - 1 = 11.

And the probability is :

  • P(blue or too big) = number of blue or too big / total number of shirts

  • P (blue or too big) = 11 / 12 ← answer

You can also realize that there is only 1 green shirt that fits well, and that is the only option of not being blue of too big, so 1 /12 is the probability of not being blue or too big, and its complement (being blue or too big) is 1 - 1/12 = 11 / 12.

7 0
3 years ago
What is the solution to the equation <br> ?<br> 1/x=x+3/2x2
victus00 [196]

Answer:

x = 0 , 3

Step-by-step explanation:

\frac{1}{x}=\frac{x+3}{2x^{2}}\\\\1*2x^{2}=x*(x+3)\\\\2x^{2}=x*x+x*3\\\\2x^{2}=x^{2}+3x\\\\2x^{2}-x^{2}-3x = 0\\\\x^{2}-3x =0\\\\x(x-3)=0

x = 0 ;   x - 3 = 0

x = 0 ;      x = 3

4 0
3 years ago
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