Respuesta :

Answer:

5%

Step-by-step explanation:

To find what percent a part is of the whole, divide the part by the whole and multiply by 100%.

4.5/90 * 100% = 0.05 * 100% = 5%

Answer:

Percentage of books she read = 5%

Step-by-step explanation:

Number of books brought = 90

Number of books read = 4.5

Percentage of books she read

 ={( 4.5) ÷ 90 } × 100

 =

 = { [tex]\frac{45}{10} ÷ [/tex]}[tex]\frac{90}{1}[/tex]} × 100

=  [tex]\frac{45}{10}[/tex] ×[tex]\frac{1}{90}[/tex] × 100

 = [tex]\frac{45}{900}[/tex] × 100

  = [tex]\frac{1}{20}[/tex] × 100

 = 5 %

Percentage of books she read is 5%