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lys-0071 [83]
3 years ago
6

For similar light intensity, compact fluorescent bulbs use about 25% of the energy of incandescent bulbs. Let's say you replaced

a bulb of 100 W with a fluorescent bulb and that your utility charges $0.15/kW-hour. How many dollars would you save in electricity in the 10,000−hour lifetime of the bulb?

Mathematics
1 answer:
Nikolay [14]3 years ago
6 0

Answer:

$112.50¢

Step-by-step explanation:

please kindly check the attached file for explanation

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Pls help! I'm confused. Can you explain this if you can.
alexdok [17]

Answer:

From a <u>table</u>, for an ordered pair (0, y), <em>y</em> will not be <u>zero</u>. From a <u>graph</u>, the y-intercept will not be <u>zero</u>.  From an equation, it will have the form, y = mx + b where b is <u>≠ 0</u>.

Step-by-step explanation:

  • From a <u>table</u>, for an ordered pair (0, y), <em>y</em> will not be <u>zero</u>. If there is not a constant rate of change in the data displayed in a table, then the table represents a nonlinear nonproportional relationship.
  • From a <u>graph</u>, the y-intercept will not be <u>zero</u>. This means that it doesn't contain or go through the origin.  
  • From an equation, it will have the form, y = mx + b where b is <u>≠ 0.</u> (not equal to zero). If an equation is not a linear equation, it represents a nonproportional relationship. A <u>linear equation</u> of the form y = mx + b may represent either a <em>proportional</em> (b = 0) or <em>nonproportional</em> (b ≠ 0) relationship.  Therefore, when b ≠ 0, the relationship between <em>x</em> and <em>y</em> is <u>nonproportional</u>.
7 0
3 years ago
A monument has a base and a statue. The base is a rectangular prism that measures 4 ft by 6ft by 2 ft. The statue is a cube with
valina [46]
So find the volume of the separate shapes. For rectangular prisms (which includes cubes), multiply width by height by length. So multiply 4 by 6 by 2. And for the cube, multiply 2 by 2 by 2. Then, to find the total volume, add the two together.
5 0
4 years ago
Find the measure of each angle indicated. Show work
IrinaVladis [17]
Hope this helps let me know if you need help

6 0
4 years ago
What is the solution to the equation below? <br> 5 - n/2 = 12
Zarrin [17]

Step-by-step explanation:

5 - n/2 = 12

10/2 - n/2 = 12

n = (12 × (-2)) + 10

n = (-24) + 10

n = <u>-1</u><u>4</u>

Let's prove it :

5 -  ( - \frac{14}{2} )  \\ =   \frac{10}{2}  +  \frac{14}{2}  \\  = \frac{24}{2}   \\  = 12

Conclusion :

5 - n/2 = 12

5 - (-14/2) = 12

and

n = -14

8 0
3 years ago
Vineet solved a system of equations by substitution. In his work, he substituted an expression for one of the variables and solv
tester [92]
The system of equations does not have a solution.

For example, imagine these two equations y = x + 7 and y = x + 9

Now subsitute y in the second equation with the value from the first equation:

x + 7 = x + 9

x - x + 7 = 9

0 + 7 = 9

7 = 9.

That happens because the equations represent parallel lines, which do not have a common pair of points.
3 0
4 years ago
Read 2 more answers
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