Answer:
Option C = 15
Step-by-step explanation:
In principle when a function <em>f(x) </em>varies directly with <em>x</em> it suggests that any changes in x results in the equivalent changes in<em> f(x)</em>. If we have two variables, i.e. <em>y</em> representing<em> f(x)</em> and <em>x</em> representing itself, any increment/decrement in <em>x</em> will result to the same increment/decrement in <em>y</em> by a factor <em>a, thus we can say that y = ax, implying y and x have the same ratio. </em>
In the given question we know that <em></em> when <em>, </em>which translates as
This tells us that varies by a factor (lets call it) for a given value of .
To find this factor we can just divide 45 with 9 which gives:
Thus the factor here is which finally tells us that
Eqn (1) our original function.
Since we now know our function we can plug in the value for and solve for as follow:
Looking at the given options in the question we can conclude that the correct answer is Option C = 15
-11 ,-3, -6, 0, 7, 9 I hope im right
Answer:
Option C
Step-by-step explanation:
Let
x ----> the cost of the concert ticket
we know that
The total cost to be no more than $4 Above $80
so
Solve for x
The total cost to be no more than $4 below $80
so
Solve for x
therefore
The inequality that represent this problem is
<u><em>Verify</em></u>
<em>First solution (positive case</em>)
Solve for x
----> is ok
<em>Second solution (negative case)</em>
Multiply by -1 both sides
Solve for x
---> is ok
Remember that
is equivalent to
Because is a absolute value
Answer:
1/-5 should be the answer
Answer:
7:15
Step-by-step explanation:
There are 15 students total, and 7 of them are going on the trip. Therefore, we write that as 7:15