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inn [45]
3 years ago
9

What is the area of the square below?

Mathematics
1 answer:
givi [52]3 years ago
5 0

Answer:

Step-by-step explanation:

If the 3.5 is supposed to represent a side length then 2.5² = 12.25 units²

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Julie cashed a paycheck and repaired her brother $10 that she borrowed from him. She then spent $30 on fuel for her car and half
pochemuha
Remark
She starts out with x
She spends 10 dollars paying back her brother (that's - 10)
She spends 30 dollars on fuel (that - 30)
She spends 1/2 what's left on a tent ( that's 1/2 (x - 10 - 30) )
She then spent 29.45  on running shoes. 1/2 (x - 10 - 30) + 29.45 is her expenditures.

After all that she has 17.75 left. 

Equation
x - 10 - 30 - 1/2(x - 10 - 30) - 29.45 = 17.75   

Solve
Begin by adding 29.95 to both sides. 
x - 10 - 30 - 1/2(x - 10 - 30)  = 17.75 + 29.45 
x -10 - 30 - 1/2(x - 10 - 30)  = 47.20  Add the like terms on the left.
x - 40 - 1/2(x - 40) = 47.20 Add 40 to both sides. Don't go inside the brackets.
x - 1/2x + 1/2 (40) = 87.20
1/2 x + 20 = 87.20                        Subtract 20 from both sides.
1/2 x = 67.20                                Multiply by 2
x = 134.40 


3 0
3 years ago
Read 2 more answers
This is what it says
Schach [20]

3x+2=-x+10

3x+2+x=-x+10+x

4x+2=10

4x+8

4x/4=8/4

x=2

The solution set is {2}

6 0
3 years ago
What is true about this graph? Select all that apply.
schepotkina [342]

Answer:

E, B and A

Step-by-step explanation:

8 0
3 years ago
Jeffrey is a kickboxing instructor who will be teaching classes at a local gym. To get certified
tatyana61 [14]

If Jeffrey takes 50 classes in his first month as an instructor, he will earn back the amount he spent on certification.

Step-by-step explanation:

Amount spent on certification = $200

Base salary = $50

Payment per class = $3

Let, x be the number of classes.

J(x) = 50+3x  

He needs to earn $200 dollars in first month, therefore,

50+3x=200

3x=200-50\\3x=150

Dividing both sides by 3

\frac{3x}{3}=\frac{150}{3}\\x=50

If Jeffrey takes 50 classes in his first month as an instructor, he will earn back the amount he spent on certification.

Keywords: function, linear equation

Learn more about functions at:

  • brainly.com/question/6465937
  • brainly.com/question/6431715

#LearnwithBrainly

7 0
3 years ago
-(7-9)z-6z=8(-6+2) solve for z
Sergeeva-Olga [200]

Answer:

(-(7-9))(z)-6z= 8(-6+2)

Simplify

-(-2)(z) -6z =8(-6+2)

Multiply 8*-6 and 8*2

2z -6z= -48+16

Combine like terms

2z+-6z =-32

-4z=-32

Divide both sides by -4

z=8

Step-by-step explanation:

5 0
3 years ago
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