Thx so much 8th grade math is so hard and I’m stuck on like ever question I get
Answer:
$955
Step-by-step explanation:
$5730 
6 = $955
Let x = first plane's speed.
We have the equation:
2 hours * x km/h + 1.5 hours * (x+60) km/h = 3135 km.
3.5 hours*x km/h + 90 km = 3135km
3.5hours*x km/h = 3045km
x = 870 km/h.
The first plane is traveling at 870 km/h, therefore since it is 60 km/h faster, the second plane is traveling at 930 km/h.
<span>volume = length * width * height = 16 * 16 * 2 = 512 in</span>³
