Price
7. The rate at which an appliance uses energy is
measured in watts. The unit of electri...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 23.02.2021 04:00, TrueKing184
Price
7. The rate at which an appliance uses energy is
measured in watts. The unit of electricity used by
Energy-saving bulbs Standard bulbs
electricity suppliers is the kilowatt hour, i. e. 1000 watts
$4.99
2 for 49c
running for one hour. Electricity costs 5c per unit.
Life of bulb
6000 hours
1000 hours
People are being encouraged to use energy-saving light
bulbs. However these are much more expensive than
Wattage
15 watts
60 watts
standard light bulbs as shown below:
How much money will you save in the lifetime of an energy-saving bulb by buying an energy saving bulb rather than
standard ones?
A $8.51
B $9.00
C $9.98
D $11.45
E $13.50
![answer](/tpl/images/cats/otvet.png)
Answers: 3
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:30, cxttiemsp021
Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:30, kalliebjones4511
Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.
Answers: 1
Do you know the correct answer?
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 03:40
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/informatica.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 26.03.2021 03:40
![Konu](/tpl/images/cats/mat.png)