D/t=r
d/r=t
tr=d
we will use
d/t=r
d=480
t=3
480/3=r=160
rate is 160 miles per hour
Answer:
Diane sent 21messages
John sent 30 messages
Hans sent 84 messages
Step-by-step explanation:
Total messages =135
let messages sent by Diane =x
""". sent by John=x+9
sent by Hans=4x
Now the sum
x+x+9+4x=135
6x+9=135
6x=135-9
6x=126
x=126/6
x=21
Diane's message=x=21
John's message=x+9=21+9=30messages
Hans' messages=4×x=4×21=84
=1
Thank you for the points <33
Answer:
$18.75
Step-by-step explanation:
25% is 1/4 of 100%
72 / 4 = 1$8.75
I think it’s X=-3+(the square root of 2)