Answer:
The second option or B
Step-by-step explanation:
The approximate total mass= number of atoms * weight of an atom.
The approximate total mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom)=
=0.51102 g ≈ 0.51 g
Answer: the approximate total mass is 0.51 grams.
Well, it fills 1 gallon per 4 hours so it fills 12 gallons per 48 hours.
Answer:
m/s
Step-by-step explanation:
Caden walks 150m in 1 minute
A student blocks his way and he has to stop for 1 minute
He then walks 500m in 1 minute.
1 minute = 60 seconds
Let's use 's' to stand for seconds and 'm' to stand for meters.
Average speed = Total distance ÷ total time taken.
Total distance = 150m + 500m = 650m
Total time taken = 60s + 60s + 60s = 180s
Average speed = 650m ÷ 180s = 
m/s
Answer:
Step-by-step explanation:
Let the angles be x and y
If the two angles are complementary then their sum is 90 i.e x+y = 90
x = 90-y
If the two angles are supplementary, then their sum is 180 i.e x+y = 180
x = 180-y
If two times the complement of an angle is 23 less than the supplementary of the angle, this is written as;
2(90-y) = (180-y)-23
180-2y = 157-y
-2y+y = 157-180
-y = -23
y = 23
Hence the angle is 23°
Answer:
Step-by-step explanation:
C=2*3.14*r
we have the diameter d=2*r=8.3m
C=8.3*3.14=26.06 m
