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mart [117]
3 years ago
9

Five more than twice a number is nine. What is the number?

Mathematics
2 answers:
DochEvi [55]3 years ago
5 0

Answer:

nine

Step-by-step explanation:

mr Goodwill [35]3 years ago
5 0

Answer:

2.

Step-by-step explanation:

The number is 2.

Multiply 2 by 2 (twice the number) and you'll get 4. Add 5 (five more) and you'll end up with 9.

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Alex leaves school to go home. He walks 11 meters North and then 10 meters West. How far is Alex from the school?
yuradex [85]

Answer:

~15 meters away

Step-by-step explanation:

c^2 = a^2+b^2

c^2 = 10^2+11^2

c^2 = 100+121

c^2 = 221

c = \sqrt{221}

c = ~15

3 0
3 years ago
An equation that shows the relationship of 30% of x is 40
Tresset [83]
What do you mean? Try to explain
5 0
2 years ago
Read 2 more answers
Determine algebraically whether f(x)=3x-2 and g(x)=(x+2)/3 are inverse functions. Show all work.
Sergio [31]

Answer:

Yes

Step-by-step explanation:

f(x)=3 x-2      

     

y= 3 x-2      

             

x= 3y - 2  

     

3 y -2 = x

3 y -2 + 2 = x + 2

<u>3 y </u> =  <u>x  </u> +  <u>2</u>                                                      

3        3       3

<u>3 y </u> =  <u>x  </u> +  <u>2  </u>                                                    

3        3       3

y =  <u>x </u>  +  <u>2   </u>        replace y with f ^ -1(x)

   <em> </em>  3        3                                            

f ^-1 (x) =    <u>x</u>   +  <u>2 </u>        

                 3       3      

4 0
3 years ago
Perform the indicated operation. Simplify the result in factored form.
guajiro [1.7K]

Answer:

\frac{3(a - 7)}{4x(a - 4)}

4 0
2 years ago
Can someone please help me
Mrrafil [7]

Answer:

y=3

Step-by-step explanation:

7y-(5y+4)=10

7y-5y+4=10

         -4    -4

7y-5y=6

2y=6

÷2   ÷2

y=3

5 0
3 years ago
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