Answer:
IM HERE
Step-by-step explanation: meh
I would have to say 72 because I did 36 times 2.... This is because the question says that the hooded sweatshirts are 2 times more..And the other brand already gave you how many they had.. I hoped that this helped. :)<span />
Answer:
The answer is a quadratic equation
Answer:
It will take 5 months to save the money to buy a video game system
Step-by-step explanation:
Tammi is planing to buy a video game system for $310. Each month she doubles the amount she saves the previous month. This means that the amount that she has for each month is increasing in geometric progression. The formula for the sum of n terms of a geometric sequence is expressed as
Sn = a(r^n - 1)/r - 1)
Where
r is the common ratio
a is the first term
n is the number of terms
From the information given,
a = $10
r = 2
Sn = 310 (cost of the video game system)
n is the number of years. Therefore
310 = 10(2^n - 1)/(2 - 1)
31 = 2^n - 1
2^n = 32
2^n = 2^5
n = 5
Answer:
199.5
Step-by-step explanation:
