Step-by-step explanation:
4 H (Hundreds)
5 T(tens)
9 ones
3x3= 9
50x3= 150
100x3= 300
add 300+150+9= 459
Answer: C. 31
Explanation:
Set A contains [50, 51, 52, … , 99, 100]. Set B contains [70, 71, 72, … , 136, 137]
Notice that Set B and Set A have an overlap from 70 to 100. So that is 31 elements in total. Hence the set A intersect B is [70, 71, 72, … , 99, 100] which is 31 elements.
Cheers.
Answer:
8 miles
Step-by-step explanation:
3+2x+1=20
2x+4=20
2x=16
x=8
8 miles.
Hope this helps!
Merry Christmas!
Answer:

Step-by-step explanation:
This is a separable equation. First divide both sides by y:

Integrate both sides:


Solve for y taking exp to both sides:

Where
is an arbitrary constant
Evaluating the initial condition:


Finally, replacing
in the differential equation solution:
