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sukhopar [10]
3 years ago
12

Two brothers have a total age of 28 if one brother is older by 20 years how old is the second brother

Mathematics
2 answers:
svlad2 [7]3 years ago
6 0

Answer:

8

Step-by-step explanation:

Total meaning addition, you would use the opposite operation to find the answer.  

28 - 20 = 8

And to check your work you would add;

20 + 8 = 28

which is the brothers total combined age.  

Andru [333]3 years ago
6 0

Answer:

8

Step-by-step explanation:

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The price of a product increased by $75, which was a 15% increase. What was the product's original price?
Leni [432]
75 x 15= 1,125
1,125/100=11.25
75-11.25= 63.75


6 0
3 years ago
Find f(2) if f(x) = (x + 1)2<br> a 9<br> b 6 <br> c 5
viktelen [127]

Answer:

B.6

Step-by-step explanation:

f(2)=(2+1)2

=(3) 2

=6

4 0
3 years ago
Use f(x) = 1 2 x and f -1(x) = 2x to solve the problems.
AVprozaik [17]

Answer:

The answer to your question is below

Step-by-step explanation:

Functions

  f(x) = 12x           f⁻¹(x) = 2x

a)   f⁻¹(-2) = 2(-2)

     f⁻¹(-2) = -4

b) f(-4) = 12x

    f(-4) = 12(-4)

    f(-4) = -48

c) f(f⁻¹(-2)) =

   f(f⁻¹(x)) = 12(2x) = 24x

  f(f⁻¹(-2)) = 24(-2) = -48            

I think your functions are wrong they must be       f(x) = 1/2x    f⁻¹(x) = 2x        

a)  f⁻¹(-2) = 2(-2)

             = -4

b) f(-4) = 1/2(-4)

         = -2

c) f(f⁻¹(x)) = 1/2(2x)

              = x

  f(f⁻¹(-2)) = -2

4 0
3 years ago
I have something to say. Some people like Feluka and other people are posting links. THESE ARE VIRUSES. They will ask for your p
Murrr4er [49]

Answer:

Don't worry :)

Step-by-step explanation:

I have informed the employees and other users of brainly saying that these websites are fake and they scam you for your usernames and passcodes but what I want to say is that not to trust these websites.

Have a good day/night :)

6 0
2 years ago
Can you guys help my teacher makes no sense
LiRa [457]
What makes no sense I don't get it what it means plus look it up if can
7 0
3 years ago
Read 2 more answers
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