Question

4.Xavier was multiplying 1.5 0.82. He knew that 15 · 82 = 1230.What is 1.5 0.82?0.0123B.0.123C.A.1.23D.12.3Explain or show your thinking.

Answer 1

1.23

Step-by-step explanation:

Given information:

`15\text{ }*0.82`

Step 1: Convert the decimals into fraction

`\begin{gathered} 1.5\text{ can be expressed as }(150)/(100) \\ 0.82\text{ can be expressed as }(0.82)/(100) \end{gathered}`
`\begin{gathered} (150)/(100)\text{ }*\text{ }(82)/(100) \\ \\ (150*82)/(100*100) \\ \\ (12300)/(10000)\text{ = 1.23} \end{gathered}`

Hence, the answer is 2.3