15%
0.150 × $63.60 = $9.54
$63.60 - $9.54 = $54.06
Answer:
190 chairs
Step-by-step explanation:
-This is an arithmetic progression with the first term a=10, the common difference is d=2 and the number of terms n=10.
-The sum of n terms in the progression can be calculated as follows:
Where
is the sum of the progression's terms.
are the first and last terms of the progression.
#We calculate as below:
#We then substitute to calculate the sum of the terms:
Hence, 190 chairs are needed for the 10 rows.
Answer:
119.4
Step-by-step explanation:
2 * 4 then add 2, it would be 2*4 = 8 + 2 = 10
==> 10/4 simplify you get 5/2