Answer:
12
Step-by-step explanation:
substitute b = 3 and c = 4 into the expression
8b - 3c
= 8(3) - 3(4)
= 24 - 12
= 12
The two variables that we should use are:
- x = number of minutes that the call lasted.
- y = cost of that call.
<h3>
What variables should we use?</h3>
Here we want to study a relation between the cost per call as the function of the minutes that the call lasted.
So, we need to use two variables, x will be the number of minutes that call lasted, this is the independent variable.
And the variable that depends on that should be the cost of the call, let's say, y is the cost of the call.
These are the two variables that we need to model the situation:
y = f(x)
There says:
<em>"The cost of the call is a </em><em>function </em><em>of the number of minutes that the call lasted".</em>
<em />
If you want to learn more about functions, you can read:
<em>brainly.com/question/4025726</em>
We have to use pythagorean theorem. The equation is
so we plug in the numbers (hypothenuse is always C in the equation)
now we solve:
Exponents
Subtract
a=6 Square Root
x=6 Answer
Answer:
13/12
Step-by-step explanation:
1-2/3+9/12
least common denominator is 12
12/12 - 8/12+9/12
13/12
In linear change, the two variables keep increasing or decreasing at the same speed.
