Answer:
First, identify your variables:
Let x = number of men in attendance.
Let y = number of women in attendance.
x + y = 48.
and
y = 12 + x
sub the second equation in for y in the first equation:
x + (12 + x ) = 48.
12 + 2 x = 48
2 x = 36
x = 18
y = 12 + 18
y = 30
Answer:
130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]
Step-by-step explanation:
We will have a partial funcion to define an expression for the monthly phone charge, because we have a condition that changes the monthly cost.
For months under 130 minutes, there will not be any additional charge other that tha base monthly cost, so the expression for the months under 130 minutes will be the monthly fee.
For months over 130 we will have the same information than above, but we have to add a fee for every minute over 130 minutes. To find the amaunt of minutes over 30 minutes we will just subtract 130 to the amount of minutes used: (m-130). Then we will multiply that number times the cos of each minute over 130 minutes: 9*(m-130). Finally we will add the basic phone fee: 15.99 + (0.09*(m-130)).
Now we set the conditions and use the correct notation for a partial function and we get:
130} \atop {15.99+0.09*(m-130),m>130}} \right.[/tex]
Answer: See Explanation
Step-by-step explanation:
1st term = an= - 5n + 8 = -5(1) + 8
= -5 + 8
a1 = 3
2nd term = an= - 5n + 8 = -5(2) + 8
= -10 + 8
= -2
3rd term = an= - 5n + 8 = -5(3) + 8
= -15 + 8
= -7
4th term = an= - 5n + 8 = -5(4) + 8
= -20 + 8
= -12
5th term = an= - 5n + 8 = -5(5) + 8
= -25 + 8
= -17
The answer to this question would be 1.) D
2.) B, 3.)C