Answer:
b A train backed up 7 feet and then moved
forward 7 feet.
Answer:
The number of commercials is 340 and the number of movies are 334.
Step-by-step explanation:
Let the number of commercials be = C
number of movies be = M
According to given conditions:
C = 6 + M --------- eq1
C + M + 6 = $680 ------ eq2
Putting eq1 in eq2:
6 + M + 6 + M = $680
12 + 2M = $680
Subtracting 12 from both sides:
2M = $680 - 12
2M = 668
Dividing both sides by 2:
M = 668/2
M = 334
For finding number of movies put value of M in eq 1
C = 334 + 6
C = 340
So The number of commercials is 340 and the number of movies are 334.
i hope it will help you!
Work is shown in the photo!
Answer would be 26. 026 is the perimeter
Answer:
7x
Step-by-step explanation:
Assuming your expression is :

Then we simplify as follows
since 
since 
since 
Answer:
$990 per unit.
Step-by-step explanation:
The Unit Cost (C) and Unit Revenue R from the production and sale of x units are related by the function:

We are required to find the rate of change of revenue per unit when the cost per unit is changing by $9 and the revenue is $1,000.
Rate of Change of C,

The Revenue is changing at a rate of $990 per unit.