Let the speed for the first 12 mi be x mi/h, the speed for 18 mi was (x+4) mi/h
thus given that
time=distance/speed
the average time will be:
3=(12+18)/(x+x+4)
3=30/(2x+4)
solving for x we get
3(2x+4)=30
6x+6=30
6x=24
x=4 mi/hr
Answer: 12 mi/hr
Answer:
6 means go to the right six times while -7 means go down seven times
Step-by-step explanation:
Yes Kent Did beat the record. There are sixteen ounces in one pound. 16•8=128+3 sooooo..131
Answer:
Step-by-step explanation:
( 5/12) × (3/8) =(5×3)/(12×8) = 5/32
Answer:
False
Step-by-step explanation:
x is 1 not zero