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Chapter 2: Q. 54 (page 67)

For exercises 53-55,use the following information.

Suppose the temperature To(C) below Earth鈥檚 surface is given by Td=35d+20,where d is the depth km.

54. Find the depth if the temperature is 160oC.

Short Answer

Expert verified

The depth is 4 at the temperature T(d) is 160oC.

Step by step solution

01

Step 1. Given information

A linear equation T(d)=35d+20 and temperature is 160oC.

02

Step 2. To find the temperature at depth of 2 (km)

Substitute the value of the temperature is 160oC in the given equation.

Now,

160=35d+20鈬�160鈭�20=35d鈬�140=35d鈬�d=14035鈬�d=205鈬�d=4

03

Step 3. Conclusion

Therefore, the value of depth is 4 at the temperature T(d)is 160oC. 90oC

Hence, the depth is 4 at the temperatureT(d)is 160oC.

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Most popular questions from this chapter

1.In the figure, 鈭�Band鈭�BCD are right angles. BC炉is 9 units, AB炉is 12 units and CD炉is 8 units. What is the area, in square units of 螖ACD?

A.36 B. 60 C.72 D.135

Find the x-intercept and the y-intercept of the graph of each equation.

6x=-12y+48

Solve each inequality.

|x+4|>2

Graph each equation or inequality.

鈥�x=-4

For Exercises 25and 26, use the following information.

When a sound travels through water, the distance yin meters that the sound travels in xseconds is given by the equation y=1440x.

How far does a sound travel underwater in 5seconds?
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