Answer:
Option C is correct.
Step-by-step explanation:
Distance already traveled by Ed 
miles
Also, Ed is driving at a rate of 63 miles per hour.
Distance 
Speed × Time
Distance traveled by Ed in 
hours 
Total distance traveled by Ed 
Also, total distance traveled by Ed is 
miles.
Therefore,
Option C is correct.
Answer:
Whats the question so that I can help?
Step-by-step explanation:
X = adults
Y = child
X+y=168
X=168-y
$10x + $7y = $1446
10(168-y) + 7y = 1446
1680 - 10y + 7y = 1446
-3 y = -234
Y = 78
X = 168-78
X = 90
$10*90 + $7*78 =
$900 + $546 = $1446
This is the concept of algebra. The value of x three times less than the value of 45-10x will be as follows;
The value of x three times is:
3x
subtracting 45-10x we get:
3x-(45-10x)
3x+10x-45
13x-45
the answer is:
13x-45
