Answer:
100000
Step-by-step explanation:
Answer:
a) linear. Cost per minute is a constant.
b) f(x) = 40 -0.15x
d) f(100) = 25. The remaining value is $25 after using 100 minutes.
Step-by-step explanation:
a) Since the cost per minute is a constant, the remaining dollar value of the phone decreases by the same amount for each minute used. The cost as a function of minutes used is a linear function with a constant rate of change.
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b) The value starts at $40 and decreases by $0.15 for each increment of x (minutes used). The function can be written as ...
f(x) = 40 -0.15x
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d) Put 100 where x is in the function definition and do the arithmetic.
f(100) = 40 -0.15×100 = 40 -15
f(100) = 25
According to the variable and function definitions, x=100 means 100 minutes have been used; f(x) = 25 means the remaining value of the phone is 25 dollars.
f(100) = 25 means the phone's remaining value is $25 when 100 minutes have been used.
Answer:
True
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hi there, its just a matter of trial and error as you know it has to be greater then 20 then the numbers you test must add together to be greater then 20.
a) 5+16 = 21, 5*16 = 80
b) 10+11 = 21, 10*11 = 110
c) 15+6 = 21, 15*6 = 90
d) 20+2 = 22, 20*2 = 40
e) 50+1 = 51, 50*1 = 50
Answer:
<h3>4x = - 12 - 28</h3>
Step-by-step explanation:
When we transpose - 4x to the LHS then it becomes positive i.e +4x
Now we transpose 28 to the RHS then it becomes negative i.e - 28
So the first step you have to is,
<em>4x = - 12 - 28</em>
