X^2 - 8x-9=0
D = b^2- 4*a*c = 64- 4* (-9) = 64+36=100 =10^2
X1 = (8-10)/2 = -1
X2= (8+10)/2= 9
Answer:
x+10
Step-by-step explanation:
It’s 11 24/64 i did this too
Answer:
he has 140 chickens because he has 10 times more chickens than ducks and he has 14 ducks so 14*10=140
Step-by-step explanation:
70% of 60 is just 60 multiplied by 0.7:

Then you add to get the total days:

So, in total, you have
102 days.