Answer:
7/4*3/5
Step-by-step explanation:
x/3/5=7/4
*3/5 *3/5
x=7/4*3/5
Answer:
If they are travelling in opposite directions, their total distance is the 135. So add their distances together to get 135
x=Quinn's speed
x+5 = James' speed
they each travel for 5 hours
speed x time = distance
x(5) + (x+5)(5) = 135
Quinn's distance + James' distance = total distance
5x+5x+25=135
10x = 110
x = 11
Quinn travels at 11 mph and James travels at 16 mph
Quinn travels 55 miles (5x11)
and James travels 80 miles (16 x 5)
80 + 55=135
GCF=9
(9 * 5) + (9 * 8) = 9(5 + 8) <==
Answer:
follow the process
Step-by-step explanation:
Use log 4= 0.602 and log 12 = 1.079 to evaluate the logarithms below.
log 48=
log 144=
______________________________________________-
Logrithims are used in slide rulers to do math quicker. Although I used one a few times, I grew up with calculators. On a slide ruler, to multiply two number you simply add the logs of the numbers.
______________________________________________-
So 48 is 4(12) log 4= 0.602 + log 12 = 1.079 = log 48 = 1.681
check inverse log (1.681) = 47.9733 which rounds up to 48
So 144 is 12(12) log 12 = 1.079 + log 12 = 1.079 = log 144 = 2.158
check inverse log (2.158) = 143.8787 which rounds up to 144