Answer:I beleive it is (5,-2)
Step-by-step explanation:
Answer:
y = 21
x = 74
Step-by-step explanation:
-x + 4y = 10
x - 3y = 11
Let the first eqn be eqn 1 and the second be eqn 2
ie
- x + 4y = 10 --------eqn 1
x - 3y = 11 ----------eqn 2
From eqn 1, make x the subject of the formula
Carrying x over the equal to in order to change the sign from - to +
4y - 10 = x
Substitute the value of x in eqn 2
4y - 10 - 3y = 11
Collecting like terms
4y - 3y = 11 + 10
y = 21
The value of y is 21
Then, substitute the value of y into eqn 1
-x + 4y = 10
-x + 4(21) = 10
-x + 84 = 10
84 -10 = x
In order to get rid of the - sign
x = 74
Therefore,
x = 74
y = 21
No solutions, so 0. If you use substitution, you will end up with 0 = -9. Which means no solutions.
Answer:
it would take 69 days
Step-by-step explanation:
x = number of days
y = money $
y = 30x
replace y by the number of money that you make
2058.85 = 30x
divise by 30 to isolate x
x = ≅ 69
46 fives. I hope I helped.
