Question

(b) the femur, or thigh bone, is related to height by a different linear equation. h = 2.3l + 65.5 use the value found in part (a) to estimate the length of the missing thigh bone. round your answer to the nearest tenth. 191.2 = 2.3l + 65.5 191.2−□ = 2.3l + 65.5−□ 125.7 = 2.3l 125.7/□ = 2.3l/□ l ≈□ cm

Explanation:

Step1: Isolate the term with L

Subtract 65.5 from both sides of the equation $191.2 = 2.3L+65.5$.
$191.2 - 65.5=2.3L + 65.5-65.5$

Step2: Solve for L

Divide both sides of the equation $125.7 = 2.3L$ by 2.3.
$\frac{125.7}{2.3}=\frac{2.3L}{2.3}$
$L=\frac{125.7}{2.3}\approx54.652\approx54.7$

Answer:

$54.7$