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Answered

1. When digging into the earth, the temperature rises according to equation
y = 20 + 0.01x, where y is the increase in temperature in degrees and x is
the depth in meters. At what depth would there be a temperature of 80°C?
A. 3 000 m
C.5 000 m
B. 4000 m
D.6 000 m​

Sagot :

FrancisRafaelFlorgo

Answer:

B. 4000 m

Step-by-step explanation:

80 = 20 + 0.01x

40 = 0.01x

x = 4000 m

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Answer:

D. 6,000 m

Step-by-step explanation:

Given equation of rise in temperature:

  • y = 20 + 0.01x

Where:

  • y = increase in temperature
  • x = depth in meters

When y=80°C, find the depth x by substituting 80 to y:

80 = 20 + 0.01x

0.01x = 80-20

0.01x/0.01 = 60/0.01

x = 6,000

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