2x+y=9
3x+5y=19
I will do this problem in 2 ways. I.)Substitution II.)Elimination
Solution I.) Substitution
We can subtract 2x from both sides in the first equation.
y=9-2x
Now we can substitute the y in the second equation with 9-2x
3x+5(9-2x)=19
-7x+45=19
-7x=-26
x=26/7
y=9-2(26/7)=11/7
Solution II.)Elimination
We can multiply both side of first equation by 5 to get a 5y in both equations.
10x+5y=45
Now because both are positive 5y we just need to do simple subtraction of the 2 equation, each side respectively.
(10x+5y)-(3x+5y)=45-19
7x=26
x=26/7
2*26/7+y=9
y=11/7
Ultimately you get the same answer, both are viable methods, some problems are faster with one method but I recommend mastering both since they are very useful.
Answer:
3.785%
Step-by-step explanation:
Assignment is 14% of the quiz
=> Assignment = 14% of the quiz
Quiz is 27% of the total weightage
=> 14% of 27%
<u>Find 14% of 27% </u>
14% of 27%
= 0.14 x 27 = 3.785%
The assignment is 3.785% of the total weightage.
Answer:
8/25 is the simplest form
Answer:
estudia porque para pendej0 no se estudia
Step-by-step explanation:
estudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia estudiaestudia
