Question

Please help! Most Beagles have shoulder heights between 36 and 41 centimeters. The following compound inequality relates the estimated shoulder height (in centimeters) of a dog to the internal dimension of the skull D (in cubic centimeters):

36 ≤ 1.02D – 31.2 ≤ 41

Which compound inequality represents the range for the skull size of Beagles? Answer choices are rounded to the nearest tenth.

Answer 1

Answer: B

Explanation:

Given:
36=<1.02D-31.2<=41

Solve the compound inequality for D:

36+31.2<=1.02D<=41+31.2

67.2<=1.02D<=72.2

65.9<=D<=70.8

Therefore, option (b) is correct answer