An extraneous solution is a solution to a simplified version of an equation that does not satisfy the original equation. You identify extraneous solution by substituting the obtained solutions to the original equation to see if it sat,isfies the original equation.
Answer:
Savings % = 40%
Monthly income = Rs 20,600
Amount spend = Rs 12,360
Step-by-step explanation:
Let the percentage savings be 's'
Percentage savings = 60% + s = 100
s = 100 - 60
s = 40%
This is because, percentages sum up to hundred (100)
Let her monthly income be I
40/100 × I = 8240
40I/100 = 8240
40I = 824000
Divide both side by 40
I = Rs 20,600
Therefore her monthly income is Rs 20,600
Amount she spends
20,600 - 8240
= Rs 12,360
Or 60/100 × 20,600
= Rs 12,360
Hey there! :D
When you have a value, it is usually positive.
For example, if I have 5 chocolate bars, then I have +5 chocolate bars.
When you take away a value, it is usually negative.
For example, I have 3 chocolate bars away, then I would have 3 fewer chocolate bars. (-3)
Integers are negative or positive whole numbers.
12 songs= 12 <== the integer
Delete 5 old songs= -5 <=== the integer
I hope this helps!
~kaikers
Is 8 a multiple of 8? Yes,because 8 is the begining of all the multiples after 8.