Answer:
Step-by-step explanation:
The given equation is 
We want to rearrange this equation so that, n becomes the independent variable.
This means we must solve form, m which becomes the dependent variable.
We expand the parenthesis to get:
We now subtract 1 from both sides to obtain:
We simplify to obtain:
This can be rewritten as
If u subtract 1,000 - 0000 it will equal 1,000
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:
Step-by-step explanation:
Answer: 10 weeks
Step-by-step explanation: the first step is to subtract
400-250=150.
So he needs to save $150 to make $400.
Divide $150/$15 =10.
It means he has 10 weeks more to save for $150 to make $400.
Therefore the final answer is 10 weeks
