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timofeeve [1]
3 years ago
12

Express your answer in smaller unit 800 m 35 cm - 154 m 49 cm

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
6 0
800 m  times the meter to cm conversion factor would be:

                                         100 cm
                         (800 m) * ----------  = 80000 cm
                                             1 m

So 800 m 35 cm would be 80035 cm.

Likewise, 154 m would be 15400 cm, and so 154 m 49 cm would be 

 15449 cm.

Subtracting 15449 cm from 80035 cm, we get 64586 cm.

This is one way in which to do this problem.

We could convert 64586 cm back to meters:  645 m 86 cm
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Sliva [168]

The 3.1 °F/min rate of change of the temperature and 15 minutes change duration gives the change in temperature as 46.5 °F

<h3>How can the change in temperature be found from the rate of change?</h3>

The rate at which the temperature changed = 3.1 °F/min

The duration of the change in temperature = 15 minutes

The relationship between the change in temperature, the rate of change in temperature and the time can be presented as follows;

3.1  ^{\circ} F/min =  \frac{ \delta T }{\delta t}  =  \frac{ \Delta T }{ \Delta t}

Where;

∆T = The required change in temperature

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Which gives;

∆T = 3.1°F/min × 15 minutes = 46.5 °F

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Enter an expression equivalent to (3x^2+2y^2-3x) + (2x^2+y^2-2x) - (x^2 + 3y^2 +x)
11111nata11111 [884]

Answer:

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
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Distributive Property

<u>Algebra I</u>

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Step-by-step explanation:

<u>Step 1: Define</u>

(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)

<u>Step 2: Simplify</u>

  1. [Distributive Property] Distribute negative:                                                    3x² + 2y² - 3x + 2x² + y² - 2x - x² - 3y² - x
  2. Combine like terms (x²):                                                                                   4x² + 2y² - 3x + y² - 2x - 3y² - x
  3. Combine like terms (y²):                                                                                   4x² - 3x - 2x - x
  4. Combine like terms (x):                                                                                    4x² - 6x
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