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Verdich [7]
3 years ago
12

In many parts of the United States, homeowners use a significant portion of their energy budget to heat their home in the winter

. It has been determined that lowering a thermostat by 3 degrees F in the winter can reduce the energy costs by about 10 percent in many homes. An individual homeowner lowers their thermostat by 3 degrees exactly halfway through the billing period. For the month that the thermostat was lowered, the heating bill was $95. How much money did the family save in the month in which they lowered the thermostat setting halfway through the billing period?
A. $2.85
B. $5
C. $9.50
D. $10
Advanced Placement (AP)
1 answer:
OverLord2011 [107]3 years ago
5 0

Answer:

B. $5

Explanation:

$95/10 percent = 9.5

9.5/2 (because it is halfway through the billing period) = 4.75

4.75 rounded up to the nearest tenths place is 5.

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he large, flat piece of wood within a piano serves the same purpose as A. a bamboo reed. B. the hollow box within a violin. C. a
Fynjy0 [20]
The correct answer is B. the hollow box within a violin.
This large, flat piece of wood found in a piano produces the sound when the piano is played, the same way the hollow box produces the sound coming from a violin. The two items have the same purpose, which is to provide the instrument with sound.
3 0
3 years ago
Julie can't remember what she made on one
IRISSAK [1]

Answer: 93

Explanation:

Firstly, we need to know the rural.scire for the 4 tests. Since the mean for the 4 tests is a 92, the total score will be:

= 4 × 92

= 368

Since we want to know the score for he 4th test, we add the score for the 3 tests that she remembers and subtract from 368. This will be:

= 368 - (100 + 95 + 80)

= 368 - 275

= 93

She had 93 in her last test.

6 0
3 years ago
Randy received his credit card bill and noticed multiple unauthorized charges. How soon must he notify his bank of these charges
oksano4ka [1.4K]

Answer:

D. Within 60 days

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Randy received his credit card bill and noticed multiple unauthorized charges. Therefore, he should have 60 days before he must he notify his bank of these charges before he becomes entirely responsible for paying them.

7 0
3 years ago
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What are your thoughts on Lev Vygotsky theory of cognitive development?
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