I'm assuming you're being asked to solve for the variable in each of the given problems.
For question 12: y=1 1/8 (mixed number)
For question 16: n=-1 2/9
This sort of tricky fraction division is best done using a calculator. You'll save yourself a lot of time.
Answer:
x = 10 and y = 5
Step-by-step explanation:
We are given:
the system of equations
-4x+11y=15... Equation 1
x=2y....... Equation 2
We substitute 2y for x in Equation 1
-4(2y) + 11y = 15
-8y + 11y = 15
3y = 15
y = 15/3
y = 5
Solving for x
2y = x
2(5) = x
10 = x
Therefore,
x = 10 and y = 5
Answer:
x=8
Step-by-step explanation:
