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Semmy [17]
3 years ago
8

The Zamboni can resurface 1200 square feet per minute. How many minutes will it take the Zamboni to resurface the entire rink if

its dimensions are:
a. 80 ft X 300 ft?

b. 75 ft X 160 ft?

c. 100 ft X 210 ft?
Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
7 0

Answer:

b

Step-by-step explanation:

sorry if wrong

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Hello pls help meeee<br> )
In-s [12.5K]

Answer:

(4, 1)

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

<u>Algebra I</u>

  • Terms/Coefficients
  • Coordinates (x, y)
  • Solving systems of equations using substitution/elimination

Step-by-step explanation:

<u>Step 1: Define Systems</u>

y = 2x - 7

y = -x + 5

<u>Step 2: Solve for </u><em><u>x</u></em>

<em>Substitution</em>

  1. Substitute in <em>y</em>:                                                                                                2x - 7 = -x + 5
  2. [Addition Property of Equality] Isolate <em>x</em> terms:                                            3x - 7 = 5
  3. [Addition Property of Equality] Isolate <em>x</em> term:                                              3x = 12
  4. [Division Property of Equality] Isolate <em>x</em>:                                                       x = 4

<u>Step 3: Solve for </u><em><u>y</u></em>

  1. Define original equation:                                                                               y = -x + 5
  2. Substitute in <em>x</em>:                                                                                                y = -4 + 5
  3. Add:                                                                                                                 y = 1
7 0
3 years ago
Find radius of a circle whose arclength is 57.1 meters and central angle of 1.46 radians
max2010maxim [7]
Hint:  \bf s=r\theta\implies \cfrac{s}{\theta}=r\qquad &#10;\begin{cases}&#10;s=\textit{arc's length}\\&#10;\theta=\textit{central angle, in radians}\\&#10;r=radius&#10;\end{cases}
3 0
2 years ago
For the function y = x + 9, what is the output value if 4 is the input value?
ozzi
Y = 13.

Explanation
Replacing the value x with 4 in the function gives that y= 4+9
y= 13
3 0
2 years ago
Which is the answers
Step2247 [10]

Answer:

1. any number from 42 to 68

e.g 52

2. any number less than 42 or greater than 68

e.g 76

5 0
2 years ago
evaluate the following if a equals 7 b equals 3 and C equals to 8 to the second minus 5 BC - 1 show how you got your answer
Amanda [17]
5(3x8)-1= 5x24-1= 120-1=119
5 0
3 years ago
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