Question

a relationship between decimal, fraction, or 3 Three students wrote percentage. Maggie wrote 75% = Bieber wrote 0.05 = 50% Lee Yung wrote == 0.375 Whích students wrote a correct equation? A. All the above B. None of the above C. Beiber and Lee Yung only D. Lee Yung only 8

Answer 1

To change decimal or fraction to percent multiply them by 100

Example: 1/4 x 100% = 25%, 0.2 x 100% = 20%

Let us check the answer of the 3 students

Maggie wrote 75% = 3/5

Since

`(3)/(5)*100=(300)/(5)=60`

Then 3/5 = 60%, not 75%

Maggie is wrong

Bieber wrote 0.05 = 50%

Let us check

0.05 x 100% = 5%, not 50%

Bieber is wrong

Yung wrote 3/8 = 0.375

Let us check

`\begin{gathered} (3)/(8)*100=(300)/(8)=((300)/(2))/((8)/(2))=(150)/(4) \\ (150)/(4)=((150)/(2))/((4)/(2))=(75)/(2)=37.5 \end{gathered}`

Since 0.375 x 100% = 37.5%

Yung is right

The answer is Lee Yung only

The answer is D