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stepan [7]
3 years ago
12

Simplify the expression.4 + (11 - 3)2A.) 68B.)6C.)20D.)144​

Mathematics
2 answers:
Damm [24]3 years ago
5 0

Answer:

I THINK ITS 20?

Step-by-step explanation:

SashulF [63]3 years ago
3 0

Answer:

c is the answer

Step-by-step explanation:

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Biff is 25 years older than Hannah today. Four years from now,Biff will be 6 times as old as Hannah will be. How old is Hannah t
gavmur [86]

Hannah is 1 year old today.

Step-by-step explanation:

Let,

Hannah = x

Biff = y

According to given statement;

y = x+25   Eqn 1

In four years;

y+4 = 6(x+4)   Eqn 2

Putting value of y from Eqn 1 in Eqn 2;

(x+25)+4=6x+24\\x+25+4=6x+24\\x+29=6x+24\\29-24=6x-x\\5=5x\\5x=5

Dividing both sides by 5

\frac{5x}{5}=\frac{5}{5}\\x=1

As x is age of Hannah, therefore,

Hannah is 1 year old today.

Keywords: linear equations, substitution method

Learn more about linear equations at:

  • brainly.com/question/4057490
  • brainly.com/question/4097107

#LearnwithBrainly

4 0
3 years ago
What is the area of a square with h=3in l=5in w=6in
Aleks [24]

Answer:

30in

Step-by-step explanation:

Length x Width = Area

3 0
3 years ago
Do the ratios 30/24 and 20/16 form a proportion?
BartSMP [9]

Answer:

Yes.

Step-by-step explanation:

Reduce both fractions.

  • 30/24 = 5/4
  • 20/16= 5/4

6 0
3 years ago
Factor the expression using the Greatest common factor 27k-6................ And 5x +60y
Alexandra [31]
27k -6 is equal to 3(9k - 2 ) 
and 5x +60 is equal to 5(x + 12) :)))
i hope this is helpful
have a nice day 
8 0
3 years ago
Help me please due tomorrow
arsen [322]

-3 + 7 = 4

4 - 7 = -3

I think that's what you want.

5 0
3 years ago
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