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Anastasy [175]
4 years ago
12

What is the value of x?

Mathematics
2 answers:
ArbitrLikvidat [17]4 years ago
8 0
First, set up an equation:
(10x-20) + (6x+8) = 180

Then, solve for x:
16x - 12 = 180
16x = 192
x = 12
Tom [10]4 years ago
4 0
10x - 20 + 6x + 8 = 180
16x - 12 = 180
16x = 192
    x = 12
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A car's speedometer has a percent error of 5%. The speedometer currently shows that the car is traveling at a speed of 60 mph.
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Bob can chop down 10 trees in 30 minutes, while Frank can chop down 15 trees in 30 minutes. Working together, how long will it t
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It will take 120 minutes to chop down 100 trees.

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The unitary approach is a way of solving a hassle via first locating the price of a single unit, after which locating the necessary cost with the aid of multiplying the single unit fee.

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8 0
2 years ago
The temperature of a liquid in an experiment changes by -10.4F from the beginning of the experiment to the first check. After ma
marta [7]

Answer:

  63.5F

Step-by-step explanation:

Let x represent the temperature at the start of the experiment. Then the temperature at first check is (x -10.4F). The temperature at the second check is 1/3 that value, and is said to be 17.7F. This lets us write the equation ...

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Multiplying by 3 gives ...

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The initial temperature of the liquid was 63.5F.

_____

<em>Additional comment</em>

Temperature is measured on an "interval scale." On such a scale, the value 0 is located arbitrarily. Concepts such as "1/3 of the temperature" have no meaning on such a scale. Here, we have to ignore that fact and assume the problem is about the numbers, not about any real temperature relationship in thermodynamic terms.

5 0
3 years ago
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