Answer:
Pretty sure there's 90 tens.
5 m/sec or 300m / min
using speed = 
change 5 min 20 sec to seconds = (5 × 60) + 20 = 320 sec
speed =
= 5m / second or
speed = 60 × 5 = 300m / minute
Answer:
i dont understand please provide more info
Step-by-step explanation:
okay?
40 = n-.40n
40 =n(1-.4)
40 = n(.6
divide by .6 on each side
40/.6 =n
n=66 2/3
Answer:
34/8 or 4 2/8
Step-by-step explanation:
6*8=48 48+5=53 =53/8
> (53/8) - (19/8) = 34/8 or 4 2/8
2*8=16 16+3=19 =19/8
You just change the whole numbers into fractions by multiplying it by the denominator, in this case 8. And then add your sum to the fraction part of the number to be left with just a fraction. To subtract, you just subtract the numerator, if the denominator is the same. In this case, it is, the denominator is 8.