Answer:
for 10. a
for 11. f.
Step-by-step explanation:
Answer:
Age= 15
Step-by-step explanation:
Let a be for age at the moment
(a-3)^2 =6(a+9)
a^2-6a+9=6a+54
a^2-12a-45
(a-15)(a+3)
a=15 or a=-3
Age cannot be negative (-)
Therefore
Age =15
Surprise, there 8 letters.
So, 8*7*6*5*4*3*2*1= 40, 320
Answer:
20 tickets
Step-by-step explanation:
tickets/total tickets * 100% = 10% chance to win the raffle
x/200*100=10
solve for x
x/200 = 10/100
x = 200(0.1)
x = 20
Plug n = 14 into the formula
= -5(14) + 90
= -70 + 90 = 20
