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Romashka [77]
2 years ago
10

Question 15(Multiple Choice Worth 5 points)

Mathematics
1 answer:
ExtremeBDS [4]2 years ago
5 0

Answer:

1 is the answer you needed

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A furnace delivers 8.0 × 104 btu per hour. how many kilocalories per hour is this?
vazorg [7]
For this case the first thing you should know is the following unit conversion.
 1 BTU = 0.25 Kilocalories
 We then have the following numerical value:
 8.0 * 10 ^ 4 \frac{BTU}{h}
 Applying the conversion of units we have:
 8.0 * 10 ^ 4 \frac{BTU}{h} * 0.25 \frac{Kcal}{BTU}
 Canceling units we have:
 20000 \frac{Kcal}{h}
 Answer:
 
This is 20000 kilocalories per hour
 
20000 \frac{Kcal}{h}
6 0
3 years ago
WILL MARK BRAINLEST TO THE CORRECT ANSWER (55 POINTS!!!)
nikitadnepr [17]

Answer:

y=20

Step-by-step explanation:

6 0
2 years ago
If you were solving a system of equations and you came to a statement like 1= 3, what do you know about the solution to the syst
Vladimir79 [104]

Answer:

The system has no solution

Step-by-step explanation:

Encountering an incorrect mathematical statement anywhere within the solution such as

1 = 3 which of course is false

Indicates the system has no solution

6 0
3 years ago
Write the product in the simplest form 3x1/6
igomit [66]

Answer:

1/2

Step-by-step explanation:

3 * 1/6 = 3/6

Which can simplify to 1/2 if you divide the top and bottom by 2.

7 0
3 years ago
] What percentage of the last 30 U.S. Presidents were inaugurated at the age of 60 or later? (Round to 1 decimal place.)
svetlana [45]

Answer:

20.0%

Step-by-step explanation:

The last 30 presidents of America starts from the 16th president, Abraham Lincoln and ends with the current and 45th president, Donald Trump.

The presidents that are 60 and above years during this period include

Donald Trump, Goerge H. W. Bush, Roland Regan, Gerald Ford, Dwight D. Eisenhower and Harry S. Truman.

Making 6 of them out of 30

The percentage is given by

Number of presidents aged 60 and above×100/Total number of presidents

6×30/100=20%

7 0
3 years ago
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