9514 1404 393
Answer:
True
Step-by-step explanation:
It is the sum of numbers having a common difference. The fact that it is a sum makes it a series (as opposed to a sequence, which is just a list of numbers). The common difference (of 2.5) makes it an arithmetic series.
True, the sum is an arithmetic series.
Let x be the unknown distance from his scout camp to another camp. The time it takes for him to travel upstream is x / (5 + 3) and downstream x / (5 - 3)
The total time for him to travel forth and back is 10 hr. This may be mathematically expressed as,
x/8 + x/2 = 10
Solving for x in this equation gives 16. Thus, the distance to the camp is 16 miles.
20% = 0.20
multiply original price ( $0) by 0.20 for the amount of discount then subtract it
80*0.20 = 16.00
she will save $16
80-16 = 64
she will pay $64 after the discount
Answer: 
Step-by-step explanation:
The figure is formed by a square, a parallelogram and a rectangle.
Then, the area of the figure will be the sum of the area of the square, the area of the parallelogram and the area of the rectangle.
The area of the square is:
The area of the parallelogram is:
The area of the rectangle is:
Therefore, the area of the figure is:
