Answer:
x = 5
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = 
bh ( b is the base and h is height )
Here A = 20, b = (x + 3) and h = (2x - 5) , then
(x + 3)(2x - 5) = 20 ← multiply both sides by 2
(x + 3)(2x - 5) = 40 ← expand left side using FOIL
2x² + x - 15 = 40 ( subtract 40 from both sides )
2x² + x - 55 = 0 ← in standard form
(x - 5)(2x + 11) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 5 = 0 ⇒ x = 5
2x + 11 = 0 ⇒ 2x = - 11 ⇒ x = - 5.5
But x > 0 , so x = 5
Hey there Tofunmi90,
A business center had 36 desktop computers and 54 laptop computer, what percent of the computers are laptop computers?
Answer:
% of laptop commputers = (54 / 36) x 100 %
= 150%
Hope this helps :D
<em>~Danielle♥</em>
I think it is
180.34 <span>centimeters</span>
Answer:
1. 325, 860
2. 729,576
8. 782,118
Step-by-step explanation:
I THINK
64 out of a 100 is the amount of vitamin C you still need.
