Answer:
$620.7
Step-by-step explanation:
$5.15 × 38 = $195.7
$195.7 + $425.00 = $620.7
The rate of change is +2 degrees per hour (an increase of 2 degrees per hour)
Answer:
325 mph and 420 mph
Step-by-step explanation:
If the speed of the slower plane is x, then the speed of the faster plane is x + 95.
The distance traveled by the slower plane is 3x.
The distance traveled by the faster plane is 3(x + 95).
The total distance is 2235 miles.
3x + 3(x + 95) = 2235
3x + 3x + 285 = 2235
6x = 1950
x = 325
x + 95 = 420
The speed of the planes is 325 mph and 420 mph.
