x/110 = (320-x)/90
<span> Cross multiply</span>
90x = 35200-110x
200x=35200
X = 35200/200 = 176 (distance traveled by train going 110 mph
176/110 = 1.6 hours = 1 hour and 36 minutes
Check: 110*1.6 = 176, 90*1.6 = 144
176+144 = 320
it will take 1.6 hours ( 1 hour 36 minutes) for the trains to meet
Answer:
X=1/2. X=4/3
Step-by-step explanation:
6x2+5X-4=0
6X2+8X-3X-4=0
2x(3x+4) - 1(3x+4)=0
2x-1) (3X-4)
X=1/2. X=4/3
Just use desmos to graph functions.
Answer:
1584 square kilometers.
Step-by-step explanation:
Here's the function I use.

a= starting amount
r= rate
t= years
First step: 
Second step: 
Third step: =1583.72164269
Fourth step: Round to the nearest square kilometer. Since 1583.7 is closer to 1584, you must round up.
Fifth step: The final answer is 
Hope this helps and stay during these crucial times. We'll get through this!