Question

Use the order of operations to simplify 4(3.5 - 1.5) - 1/2.

a. 19 1/2
b. 7 1/2
c. 12
d. -4

Answer 1

`\huge \bf {Question}:—`

`\boxed{\bf \: 4(3.5 - 1.5) - 1/2}`

`\bf\huge Solution:—`

`\sf \longmapsto \: 4*(3.5-1.5)-1/2`

`\boxed{\bf \: Convert \: 1/2 \: i nto \: Decimal:—}`

`\sf \longmapsto \: 4*(3.5-1.5)-0.5`

`\boxed{\bf \: Subtract \: 3.5-1.5 :—\: (2 \: is \: the \: result)}`

`\sf \longmapsto \: 4*(2) - 0.5`

`\boxed{\bf Multiply \: 4 \: and \: 2:—(8 \: is \: the \: result)}`

`\sf \longmapsto8-0.5`

`\boxed{\bf \: Simply \: Subtract:—}`

`\sf \longmapsto7.5`

`\boxed{\bf Convert \: to \: Fraction, \: And \: Fraction\:to\:Mixed \:Fraction:—}`

`\sf\longmapsto 15/2`

`\boxed{\bf \: Mixed \: Fraction:—}`

`\boxed{\sf\longmapsto 7 (1)/(2) }`

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`\boxed{\bf Solving \: in \: another \: way:—}`

`\sf \longmapsto4*2-1/2`

`\sf \longmapsto4*(2)-1/2`

`\sf \longmapsto8-1/2`

`\sf \longmapsto \: 15/2`

`\boxed{\bf \: Mixed \: Fraction:—}`

`\boxed{\sf \longmapsto \: 7 (1)/(2) }`

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`\boxed{\bf \: \: Answer \: i s \: Option \: B}`

`\boxed{\huge\sf \: (B) \: \bf \: 7(1)/(2)}`

Answer 2

`\huge\textbf{Hey there!}`

`\mathbf{4(3.5 - 1.5) - (1)/(2)}\\\\\mathbf{\rightarrow 4(2) - (1)/(2)}\\\\\mathbf{\rightarrow 8 - (1)/(2)}\\\\\mathbf{\rightarrow (15)/(2) \approx 7.5 \approx \boxed{\bf 7 (1)/(2)}}\\\\\\\\\huge\boxed{\textbf{Therefore, your answer is: \boxed{\mathsf{Option \ B. \ 7 (1)/(2)}}}}\huge\checkmark`

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`\frak{\bf Amphitrite1040:)}`