Answer:
Step by step explanation
Question number 3 : Twenty percent of Mrs.Reynold's monthly earnings is budgeted for food. If $ 156.00 goes for food , what are her total monthly earnings ?
☄ [tex] \underline{ \underline{ \sf{Solution}}}: [/tex]
- Let her total monthly earnings be ' x '
Now , According to question , Set up an equation and solve for x :
[tex] \tt{20\% \: of \: x \: = \: 156.00}[/tex]
⤑ [tex] \tt{ \frac{20}{100} x = 156}[/tex]
⤑ [tex] \sf{ \frac{1}{5} x = 156}[/tex]
⤑ [tex] \tt{x = 156 \times 5}[/tex]
⤑ [tex] \boxed{ \sf{x = \$ \: 780}}[/tex]
[tex] \boxed{ \boxed{ \red{ \tt{ \: her \: monthly \: earnings \: is \: \$ \: 780}}}}[/tex]
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Question number 4 : Marie bought a skirt on sale of 25% off . If she saved $ 9.75 , what was the original price of the skirt ?
☄[tex] \underline{ \underline{ \text{Given}}} : [/tex]
- Discount percent = 25 %
- Discount amount = $ 9.75
- Let the Original price of a skirt be ' x '.
Set up an equation and solve for x :
[tex] \sf{discount \: percent \: of \: original \: price \: = \: discount \: amount}[/tex]
[tex] \tt{25\% \: of \: x = 9.75}[/tex]
⤑ [tex] \tt{ \frac{25}{100} x = 9.75}[/tex]
⤑ [tex] \tt{ \frac{1}{4} x = 9.75}[/tex]
⤑ [tex] \tt{x = 9.75 \times 4}[/tex]
⤑ [tex] \tt{x = \$ \: 39}[/tex]
[tex] \boxed{ \boxed{ \red{ \sf{The \: original \: price \: of \: the \: skirt \: is \: \$ \: 39.}}}}[/tex]
And we're done !
Hope I helped ! ツ
Have a wonderful day / night !♡
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