contestada

If the aspect ratio in width:height of a chalkboard is 16:7 and the height is 27 in., what is the width of the chalkboard?
27"
61.7 in
4.1 in.
11.8 in
79.1 in

Respuesta :

Answer:

The width of the chalkboard is 61.7 inches .

Step-by-step explanation:

Given as :

The ratio of width to height of chalkboard = 16:7

The height of the board = H = 27 inches

Let The width of the board = W inches

∵ [tex]\dfrac{\textrm width of board}{height of board}[/tex] = [tex]\dfrac{16}{7}[/tex]

Or,  [tex]\dfrac{W}{H}[/tex] =  [tex]\dfrac{16}{7}[/tex]

Or, [tex]\dfrac{W}{27}[/tex] =  [tex]\dfrac{16}{7}[/tex]

Or, W = [tex]\dfrac{16}{7}[/tex] × 27

Or, W = [tex]\frac{16\times 27}{7}[/tex]

Or, W =  [tex]\dfrac{432}{7}[/tex]

∴  W = 61.7 inches

So, The width of board = W = 61.7 inches

Hence, The width of the chalkboard is 61.7 inches . Answer