19 people take the elevator. it’s just asking for the total of people who take the elevator.
Answer:
D. Add the exponents and keep the same base. Then find the reciprocal and change the sign of the exponent
Step-by-step explanation:
Just got it right on edge 2020
<span>3 black ribbons and 12 green ribbons
so P(</span><span>Lila selects a black ribbon)=3/(3+12)
=1/5
</span>2 black ribbons and 12 green ribbons left
P(<span>Jessica selects a green ribbon)=12/(12+2)
</span>=6/7
so P(<span>Lila selects a black ribbon and Jessica selects a green ribbon)
</span>=1/5*6/7
=6/35
ans is D
First, let's list the factors of each number
150: 1, 150, 2, 75, 3, 50, 5, 30, 6, 25, 10, 15
135: 1, 135, 3, 45, 5, 27, 9, 15
From these lists, we can say for certain that 1, 3, 5, and 15 go into both numbers, so that would be your list of the common factors.
I hope this helps!
C= 3x-5 T=x total:75
x+3x-5=75
x=20
20x3=60
60-5= 55
CHECK:
55+20=75
therefore Tiara is 20 years old
