John's gross monthly salary is $2000.
John receives a 15% raise in his salary.
So first we have to find 15% of $2000.
15% of 2000 =
=
=
=
John's salary including the raise = $ = $2300.
Now 30% of his monthly paycheck withheld for taxes.
30% of 2300 =
=
=
=
So the amount of tax deducted = $690.
John's net monthly income = $ = $1610.
So we have got the required answer.
Answer:
Each pencil costs $0.07 and each eraser costs $0.03
Step-by-step explanation:
System of linear equations
It refers to the study of systems when n variables are related in m linear equations, each one is not independent from the others. Solving such systems can be done following very diverse approaches.
Let p=the price of each pencil while e is the price each eraser
Julio bought 4 pencils and 3 erasers, spending
David bought 3 pencils and 4 erasers, spending
The system of equations is written in the form
We'll solve it by reduction. Multiplying the first equation by -3 and the second by 4:
Adding both equations:
7e=0.21
e=0.03
Multiplying the first one by -4 and the second by 3
Adding both equations:
-7p=-0.49
p=0.07
Solution: Each pencil costs $0.07 and each eraser costs $0.03