Answer:
x = 32
Step-by-step explanation:
180 - 42 - 106 = x
x = 32
((3.14 * (10^7)) * (1.3 * (10^(-3)))) / 0.2 = 204100
Okay, so we know that n is the number of bars we want to buy. The sum of the numbers of bars we buy is $1.29n where n is the number of bars we buy. Its the same as saying:
$1.29 + $2.58 + $3.87... $1.29n
↑ ↑ ↑ <span> ↑</span>
Bar 1 Bar 2 Bar 3... Bar n
So as you can see, our function is:
C(n) = $1.29n
Answer:
x = 19
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = 
h (b₁ + b₂ )
h is the perpendicular height and b₁ , b₂ the parallel bases
Here A = 180.5 , h = x , b₁ = 13 and b₂ = 6 , then
x (13 + 6) = 180.5 ( multiply both sides by 2 to clear the fraction )
x × 19 = 361 ( divide both sides by 19 )
x = 19
12x + 14 = 26x + 21x = 27x
