Answer:

Step-by-step explanation:
Differentiating, you get ...
... x·dy +y·dx +dx +dy = 2x·dx +2y·dy
Collecting terms gives ...
... dy(x +1 -2y) = dx(2x -y -1)
... dy/dx = -(2x -y -1)/(2y -x -1)
Answer:
A centimeter is 100 times the length of a meter.
A kilometer is 1,000 times the length of a meter.
Answer:
There isnt any solution.
Step-by-step explanation:
but these are the steps:
Step 1: Simplify both sides of the equation.
5x−3+2x=x+7+6x
5x+−3+2x=x+7+6x
(5x+2x)+(−3)=(x+6x)+(7)
7x+−3=7x+7
7x−3=7x+7
Step 2: Subtract 7x from both sides.
7x−3−7x=7x+7−7x
−3=7
Step 3: Add 3 to both sides.
−3+3=7+3
0=10
<h3>hope this helps</h3>
Answer:the answer is A
Step-by-step explanation:i just took the test
Answer:
Step-by-step explanation:
The number of miles that he ran last week is m.
His goal this week was to run one mile more than twice the miles he ran last week. This means that his goal this week is
m + 2m = 3m
If he tripled his goal, it means that the number of miles that he ran this week would be
3 × 3m = 9m
An expression in simplest form to show how many more miles he ran this week compared to last week would be
9m - m = 8m