Answer:
Your answer is correct. The series is a geometric series with common ratio -1/4 and first term 40. So each term is:
an = 40 (-1/4)^(n−1)
So the sum of the first 10 terms is:
∑(n=1 to 10) [ 40 (-1/4)^(n−1) ]
Answer:
192
Step-by-step explanation:
Well, well, it takes four 1/4's to equal 1. So, they can make 4 burgers with 1 pound of meat. So, simply multiply 48 times 4 to get your answer.
1) A boy received a collection of 30 baseball cards and decided to start collecting. If he adds 2 stamps every month, how long it will take to have 50 stamps in his collection.
2) A girl opens a saving account with $100 and the bank pays 1 % monthly interest rate, how much money she will have after 12 months if she does not deposit or draw any amount.
:P
Answer:
13x -12
Step-by-step explanation:
13 x - 4[ x + (3 - x )].
Combine like terms inside the brackets
13 x - 4[ 3 -0x]
13x - 4[3]
Multiply
13x -12
X equals about 1.1
Look at the attachment below.
I hope this helps :)
~ erudite
