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3 years ago

What is the value of x? х= 32 х= 36 х = 37 x= 40

Mathematics

2 answers:

labwork [276]3 years ago

8 0

Answer:

x = 40 deg

Step-by-step explanation:

Given that the line at the base of the triangle is a continuous straight line,

x + (4x-20) = 180 degrees

x + 4x - 20 = 180

5x = 180 + 20

5x = 200

x = 40 deg

Akimi4 [234]3 years ago

7 0

The answer is 40 because 5x=200 and so X must equal 40

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Answer:

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Step-by-step explanation:

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Alexeev081 [22]

Use Law of Cooling:
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Substituting k back into cooling equation gives:
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At some time "t", it is brought back inside at temperature "x".
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The new cooling equation for when its back inside is:
$T(t) = (x-80)(\frac{11}{30})^{t/3} + 80 \\ \\ 71 = (x-80)(\frac{11}{30})^{\frac{10-t}{3}} + 80$
Solve for x:
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Sub back into original cooling equation, x = T(t)
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This means the exact time it was brought indoors was about 2.5 seconds before 2:05 PM

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