The expression that can be used to find the value of y when x is 112 is
y= 3.6*112
Step-by-step explanation:
We are given that y varies directly with x, and y=18 when x = 5.
We need to find the expression used to find the value of y when x = 112
When y varies with x, it means:
y ∝ x
y= k x
where k is constant of proportionality.
if y= 18 and x = 5, then finding k:
y = k x
18= k*5
k= 18/5
k= 3.6
So, value of k is: 3.6
Finding expression for y when x = 112
y= k x
k= 3.6 and y = 112
y= 3.6*112
So, the expression that can be used to find the value of y when x is 112 is
y= 3.6*112
Keywords: Direct Variation
Learn more about Direct Variation at:
#learnwithBrainly
Answer:
If a customer paid 100$ they used 750 international call minutes.
Step-by-step explanation:
If you are already paying 25 dollars that means you are paying 75 extra for international call minutes. With one minute being $0.10 that means 10 minutes is a dollar. From there you can multiply your dollar for 10 minutes by 75 which now adds 75 dollars which means we used 750 minutes. (This is my first time answering good luck :)
Answer:
1.
<u>An extraneous solution is a root of a transformed equation that is not a root of the original equation as it was excluded from the domain of the original equation.</u>
It emerges from the process of solving the problem as a equation.
2.I begin like:
The vertical asymptotes will occur at those values of x for which the denominator is equal to zero:
for example:
x² − 4=0
x²= 4
doing square root on both side
x = ±2
Thus, the graph will have vertical asymptotes at x = 2 and x = −2.
To find the horizontal asymptote, the degree of the numerator is one and the degree of the denominator is two.
Answer:
x = (5/3)
x = -1
Step-by-step explanation:
You would just need to solve the two equations from step three for 'x'.
Hope this helps you.
