This is the concept of algebra, speed is given by:
speed=(distance)/time
Average speed=[(speed A)+(speed B)]/2
suppose the speed at the second mile was x mph; thus the average speed was:
(30+x)/2=60
solving for x we get:
30+x=60*2
30+x=120
subtracting 30 from both sides we get:
x+30-30=120-30
x=90 mph
thus the speed at the second mile should be 90 miles per hour
Answer:
![A(t)=9t](https://tex.z-dn.net/?f=A%28t%29%3D9t)
Step-by-step explanation:
-let
be the number of hour Hong work and
denote the amount Hong earns after
hours.
-Given Hong earns
for each hour worked, his total earnings at time
can be expressed as:
#For example, if Hong works zero hours his pay would be ![A(0)=9\times 0=0](https://tex.z-dn.net/?f=A%280%29%3D9%5Ctimes%200%3D0)
Answer:I’m pretty sure it’s No, the cats know the difference between tuna and chicken flavor treats.
Step-by-step explanation:
In this situation, the -$55 represents the debt of $55,
since this happens when Miguel does not have enough money in his account to
cover payments or transactions. On Thursday, he has a debt of more than $55. The
explanation behind this is if an account balance is less than -55 dollars, it exemplifies
a debt bigger than 55 dollars.
I can't answer it the problem