Question

The diagram shows the length and width of a cell phone, and the length of a larger

Answer 1

Answer:

The width of the bigger phone is 2.99 in

Explanation:

Given

$W_1 = 2.6in$

$L_1 = 5.4in$

$L_2 = 6.21in$

See attachment for the measure of cell phones

Required

Determine the width of the bigger version (L2)

To do this, we make use of the following equivalent ratios.

$L_1 : W_1 = L_2 : W_2$

This gives:

$5.4\ in : 2.6\ in : 6.21\ in : W_2$

Express as fractions

$\frac{5.4\ in}{2.6\ in} = \frac{6.21\ in}{W_2}$

$\frac{5.4}{2.6} = \frac{6.21\ in}{W_2}$

Make W2 the subject

$W_2 = \frac{6.21 * 2.6\ in}{5.4}$

$W_2 = \frac{16.146\ in}{5.4}$

$W_2 = 2.99\ in$