Answer is 19;
Problem
a1=325 , d=25 , S19=?
Result
S19=10450
Explanation
To find S19 we use formula
Sn=n2⋅(2a1+(n−1)⋅d)
In this example we have a1=325 , d=25 , n=19. After substituting these values into the above equation, we obtain:
Sn19=n2⋅(2a1+(n−1)⋅d)=192⋅(2⋅325+(19−1)⋅25)=192⋅(650+18⋅25)=192⋅(650+450)=192⋅1100=10450
(7x10)+(4×1)+(9×1\100)+(2×1\100)=74.11
Answer:
x(x+ 1 + 2) + y x= 7 y=4 the actual difference is £56 = 26/28= 13/14. Reasons, He was under 15 but over 13 = 13/14 to be far too busy spending a set amount that cost multiples of the ticket. He spent so much and realized within his allowance he only managed to justify the amounts on snacks - this proportion and perhaps, spending inside the cinema as he was already there.
Step-by-step explanation:
Expand the brackets
7 x 7 + 1 + 4 = 56 spent on snacks.
Move the decimal 2 places to the right
8.4 becomes 840
72 different orders, each soup can have a different meat and other* so take 4* 6* 3 because that is how many different combanations you can do
