f the air temperature at ground level is 90degrees°F, the air temperature x miles high is given by T(x)equals=90minus−19x. Determine the altitudes at which the air temperature is from 52degrees°F to 42.5degrees°F.

asked by John

9 years ago

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1 answer

42.5 <= 90-19x <= 52
-47.5 <= -19x <= -38
2.5 >= x >= 2

answered by Steve

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1

Question

f the air temperature at ground level is 90degrees°F, the air temperature x miles high is given by T(x)equals=90minus−19x. Determine the altitudes at which the air temperature is from 52degrees°F to 42.5degrees°F.

1 answer

42.5 <= 90-19x <= 52
-47.5 <= -19x <= -38
2.5 >= x >= 2

Steve · Answer

42.5 <= 90-19x <= 52 -47.5 <= -19x <= -38 2.5 >= x >= 2