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Mamont248 [21]
1 year ago
10

The temperature declines 3 degrees each hour for 5 hours. What is the change in temperature at the end of those five hours

Mathematics
2 answers:
My name is Ann [436]1 year ago
8 0

it changes -15 so what ever the first temp was -15

ira [324]1 year ago
5 0

Answer:In one hour outdoor temperature declines 3 degrees. Hence, in 5 hours it will decline by 5×3=15 degrees

Step-by-step explanation:

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Christina uses a ruler to measure the length of the math book she says that the book is 4/10 m long is her measurement in simple
lidiya [134]

Answer:

  2/5 m or 4 dm

Step-by-step explanation:

The fraction 4/10 can be reduced by removing a factor of 2 from numerator and denominator. The length could be expressed as 2/5 m.

The metric system has unit prefixes that make it easy to choose appropriate units for almost any measurement. Apparently Christina wants to use 1/10 m as her unit of measurement. That length is also called a "decimeter." So, Christina's measurement could be expressed in very simple form as 4 dm.

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A decimeter is not a particularly common unit in everyday use, though it is reasonably useful for many purposes.* More conventionally, lengths in that range are expressed in centimeters, so Christina's measurement could also be described as 40 cm.

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3 years ago
I'm just done with math... as long as you explain it I'll mark your brainiest.
svet-max [94.6K]

Answer:

The correct answer is the third option

Step-by-step explanation:

Have different slope but have the same y-intercept, so they have no solution.

y = 1/2x - 3

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second equation:

y =  -1/2x -3

To graph this, the slope -1/2 which means go down once and to the right twice and b = -3, which means the y-intercept.

Please mark as brainliest

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Answer:

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Step-by-step explanation:

4 0
3 years ago
1
Yanka [14]

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

<h3>System of equation</h3>

System of equation are made of two or more equations with unknowns

Given the system of equation

4x=5-2y

y-2x=7

From equation 2:

y = 7 + 2x

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

Learn more on system of equation here: brainly.com/question/14323743

#SPJ1

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aleksklad [387]
A= (a+b/2) × h

Is the formula for a trapezoid
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3 years ago
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