Recall that for a home visit, the technician charges $50 regardless on the time spent in the repair.
So, to find out the rate, we should calculate the part that depends on the spent time, and the add 50. So for example, we know that the technician spents 1 hour. So, we multiply 1 times 25 and then add 50. So, 25*1 + 50 = 75, which is the rate for a 1-hour repair.
So, in general, if we know that the number of hours is x, we multiply x times 25 and then add 50. Then a table would like this:
x 25*x 25*x +50
1 25 75
2 50 100
3 75 125
4 100 150
Note that as the time increases by one hour, the fare increases by 25. This is an example of a direct variation, since as the independent variable increases (t
Answer:
42-2x
Step-by-step explanation:
8-2(x+17)
8-2x+34
42-2x
Answer:
A (1\(3^4))
Step-by-step explanation:
3^-8\3^-4 = 3^4\3^8 =1\3^4
Answer
Find out the how many orders did they each serve .
To prove
Let us assume that the tony served be = x
As given
Laura,Ahmad,and Tony served a total of 94 orders Monday at the school cafeteria.
Ahmad served 3 times as many orders as Tony. Laura served 9 more orders than Tony.
Let us assume that the Ahmad served be = 3x
Let us assume that the Laura served be = 9 + x
Than the equation becomes
x + 3x + 9 + x = 94
5x = 94 - 9
5x = 85
x = 17
Tony served order be = 17
Ahmad served order be = 3 × 17
= 51
Laura served order be = 9 + x
= 9 + 17
= 26
Therefore the Tony served order is 17 , Ahmad served order is 51 and
Laura served order is 26 .