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aleksandrvk [35]
3 years ago
9

Zelmas friend told her that she could earn $54 for cleaning up after a birthday party. Zelma wants to calculate the hourly rate

.If she works a total of 4.5 hours ,the equation 4.5x= 54 can be used to determine her hourly rate . What would Zelma hourly rate be in dollars
Mathematics
2 answers:
Alik [6]3 years ago
5 0
Nothing it can be the
vesna_86 [32]3 years ago
5 0

Answer:

Step-by-step explanation:

I would try dividing 54 by 4.5 =

54/4.5=12

4.5x=54

4.5(12)=54

54=54

she would get 12 dollars for every 4.5 hours.

(I think)

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Expand and simplify (2x−12) ^2
lubasha [3.4K]

Answer:

\boxed{4x^{2}  - 48x + 144}

Step-by-step explanation:

Given expression:

  • (2x - 12)²

To simplify the expression, we will use the formula (a - b)² = a² - 2ab + b².

[Where "a and b" are the first and second term in (a - b)²]

\rightarrowtail (2x - 12)^{2}

In this case, the first term of (2x - 12)² is "2x" and the second term is "12".

\rightarrowtail (2x)^{2} - 2(2x)(12) + (12)^{2} \ \ \ \ \ \ \ \ \ \ \ \ \ \  [\small\text{First term = a = 2x; Second term = b = 12]}

Now, simplify the expression.

\rightarrowtail (2x)^{2} - 2(2x)(12) + (12)^{2}

\rightarrowtail (2x)(2x) - (4x)(12) + (12)(12)

\rightarrowtail \boxed{4x^{2}  - 48x + 144}

4 0
2 years ago
I need help on this
adoni [48]
I am pretty sure the answer is,

B
4 0
3 years ago
Please no one is helping me I truly need help pls
vampirchik [111]

Answer:

104 cm^3

Step-by-step explanation:

2(1/2(6*4))+2(1/2(4*10)+(4*10)

2(1/2(24)+(2(1/2(40)+(40)

2(12)+2(20)+40

24+40+40

104 CM^3

3 0
3 years ago
Divide x to the 5 eighths power divided by x to the 1 fourth power.
8_murik_8 [283]

\frac{x^{5/8}}{x^{1/4}} = x^{5/8-1/4}= x^{5/8-2/8}= x^{3/8}   or  \sqrt[8]{x^3}

8 0
3 years ago
5x + y = 6 5x + 3y = -4 The y-coordinate of the solution to the system shown is ___.
8_murik_8 [283]
Subtract these 2 equations,

5x-5x +3y-y = -4-6

2y = -10

y = -5

-5 is your answer.
6 0
4 years ago
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