Answer:
y=-1/5
Step-by-step explanation:
3(2)+5y=5
6+5y=5
5y=5-6
5y=-1
y=-1/5
Answer:
You would need transformations to solve this.
Answer:
y = 49
Step-by-step explanation:
Given y varies directly as x then the equation relating them is
y = kx ← k is the constant of variation
To find k use the condition y = 21 when x = 6 , then
21 = 6k ( divide both sides by 6 )
3.5 = k
y = 3.5x ← equation of variation
When x = 14 , then
y = 3.5 × 14 = 49
Consider the following case:
Suppose a student earns $113.75 for painting and he works 13 hours, find his hourly rate.
In the above problem, to find the hourly rate, we need to divide the decimal 113.75 by 13.
The answer is:
Since there is no value for either X or Y given, you can only change the formula around to equal X.
y=45x+38
First move the 38 to the left side by canceling it out (subtract 38 from both sides).
y-38=45x+38-38
So now we have:
y-38=45x
Now isolate the x on the right side by dividing both sides by 45.
(y-38) / 45 = x
So,
x = (y-38) / 45
(If the answer you’re looking for is a specific number, then the value for X or Y needs to be given!)
