Solve the problem.A collection of dimes is arranged in a triangular array with 16 coins in the base row, 15 in the next, 14 in the next, and so on with 1 dime in the last row. Find the value of the collection.
A. $27.20
B. $13.60
C. $1.36
D. $6.80
Answer: B
You might also like to view...
Provide an appropriate response.In extreme temperatures, concrete can experience a ±1.2% change in length after it is laid. Considering this, if 20 ft sections of concrete are laid for a bridge during cold weather, what width of expansion joint must be allowed so that the bridge will not buckle in hot weather? Round your answer to the nearest hundredth of a foot.
Fill in the blank(s) with the appropriate word(s).
Suppose 100 people counted the number of cars passing an intersection in one hour. Due to error, not all people get the same value. The mean is 75 and the standard deviation is 1. Use the sketch to find how many people report the following. 
Less than 76 cars
A. 83 people B. 68 people C. 34 people D. 84 people
The triangle with these three vertices is a right triangle:
(a) (-6, 2), (-3, 4), (-3, 2) (b) (1, -1), (3, 3), (5, 1) (c) (1,-1), (5,-2), (2,-3) (d) (-1,-1), (-5,-2), (-5,-4)
Round the number as indicated.545 to the nearest ten
A. 540 B. 650 C. 560 D. 550