Decompose the terms in the sum as
so there are 20 terms in the sum. Then our sum simplifies to
Now, if
we can reverse the order of terms to get the same sum,
so that doubling up the sum gives
So, our sum evaluates to
Divide how many roses they use by how many is in each: 882/3=294. They sell 294 vases :)
Answer: f(x) = 9
Step-by-step explanation:
Plug in wherever you see x the value of f(5)
so you would do
4(5) - 11
20 - 11
9514 1404 393
Answer:
- 120 m²
- 26 ft²
Step-by-step explanation:
The area is given by the formula you show. The height is measured perpendicular to the base.
1. A = bh = (10 m)(12 m) = 120 m²
2. A = bh = (6.5 ft)(4 ft) = 26 ft²
Answer:
24 + 30 = 54 pancakes flipped in 2 minutes :)
Step-by-step explanation:
damon = 5 pancakes in 20 seconds
we do 20 x 3 and 5 x 3 to find how many pancakes he can flip in a minute
15 pancakes and a minute, we then multiply them by 2 to get the amount for 2 minutes
30 pancakes flipped in 2 minutes
Hailey = 2 pancakes in 10 seconds. to make it an equal amount of pancakes per second with damon, i will multiply them by 2 to have 4 pancakes in 20 seconds
we will then do 4 x 3 and 20 x 3 to find out how many pancakes per minute
then we multiply by 2 for 2 minutes
