Jo has a total monthly income for $1000.
Step-by-step explanation:
Percent spent on food = 25%
Percent spent on rent = 30%
Percent spent on insurance = 20%
Percent spent on entertainment = 10%
Total = (25+30+20+10)% = 85%
As 100% is the full monthly salary, so remaining will be
Remaining salary = (100-85)% = 15%
Half of remaining is spent on charity = [tex]\frac{15}{2}=7.5\%[/tex]
Remaining 7.5% is saved by Jo.
Amount saved by Jo = $75
Let,
x be the monthly salary of Jo.
7.5% of x = 75
[tex]\frac{7.5}{100}x=75\\0.075x=75[/tex]
Dividing both sides by 0.075
[tex]\frac{0.075x}{0.075}=\frac{75}{0.075}\\x=1000[/tex]
Jo has a total monthly income for $1000.
Keywords: addition, division
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