Question

1) 7 is 15 % of what number ?

2) 25 is what percent of 60%
3) what is 0.15% of 250?
4) 300 is 250% of what Number
Please show work

Answer 1

`\boxed{ \sf{1. \: \: \: \: 46.67}}`

`\boxed{ \sf{2. \: \: \: \: 41.67\%}}`

`\boxed{ \sf{3. \: \: \: \: 0.375}}`

`\boxed{ \sf{4. \: \: \: \: 120}}`

Explanation:

1. Let the number be x

`\sf{15\% \: of \: x = 7}`

`\dashrightarrow{ \sf{ (15)/(100)x = 7}}`

`\dashrightarrow{ \sf{0.15x = 7}}`

`\dashrightarrow{ \sf{x = (7)/(0.15)}}`

`\dashrightarrow{ \sf{46.67}}`

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2. Let the percent be x %

`\sf{x\% \: of \: 60 = 25}`

`\dashrightarrow{ \sf{ (x)/(100) * 60 = 25}}`

`\dashrightarrow{ \sf{ (60)/(100)x = 25}}`

`\dashrightarrow{ \sf{0.6x = 25}}`

`\dashrightarrow{ \sf{x = (25)/(0.6) }}`

`\dashrightarrow{ \sf{41.67\%}}`

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3.
`\sf{0.15\% \: of \: 250}`

`\dashrightarrow{ \sf{ (0.15)/(100) * 250}}`

`\dashrightarrow{ \sf{0.375}}`

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4. Let the number be x

`\sf{250\% \: of \: x = 300}`

`\dashrightarrow{ \sf{ (250)/(100) * x = 300}}`

`\dashrightarrow{ \sf{2.5x = 300}}`

`\dashrightarrow{ \sf{x = (300)/(2.5) }}`

`\dashrightarrow{ \sf{x = 120}}`

Hope I helped!

Best regards! :D