Hello!
0.85b-0.2b
0.65b
0.65b=0.65b
So these expressions are equivalent.
Hope it helps!
~Just a determined gal
#CarryOnLearning
5 divided by 3/5 is 8 1/3.
2 hours at 45 mph gives a distance of 90 miles
he has another 90 miles to travel
total distance=rate*(total time)
his average speed must be 60 mph
180=60*(2+t) where t is the amount of time he has to travel the other 90 miles
180=120+60t
180-120=60t
60=60t
t=60/60
t=1 hour
Sam must travel 90 miles in 1 hour, thus Sam must travel 90 miles per hour to have an average of 60 mph
90 mph is the answer
you can check by using the harmonic mean if you understand what it is:
(2*45*90)/(45+90)=8100/135=60
you can also find the answer using the harmonic mean:
(2*45*R)/(45+R)=60
(2*45*R)=60*(45+R)
90R=2700+60R
90R-60R=2700
30R=2700
R=2700/30
R=90 mph must be Sam's speed for the other 90 miles to average 60 mph
Answer:
Step-by-step explanation:
It should be 10 months because if the tree grows 7 centimeters each month then in 10 months it'll be 70 and if she removes 6 inches off that'd be equivalent to 64 centimeters high
By definition, we have that the conversion of a US gallon to liters is given by:
1 liter = 3.78541 gallons
Therefore, we can apply the following rule of three:
1 liter ---------------------> 3.78541 gallons
5100 liters --------------> x
Clearing x we have:
two significant figures:
Answer:
The lung capacity of the blue whale is: