Answer: The value of x is 2
Step-by-step explanation:
I just subtracted from both sides and you get 2 and another way to say this is 5-3 and 3-3
Answer:
r=40% or .4
Step-by-step explanation:
32=16(1+r)^2
Answer:
<h3> 26²/₃ liters of 15% acid and 13¹/₃ liters of 33% acid</h3>
Step-by-step explanation:
Concentration Amount of Amount
of Solution Solution (L) of Acid
15% x 0.15x
33% y 0.33y
21% 40 0.21•40
x + y = 40 ⇒ x = 40 - y
0.15x + 0.33y = 0.21•40
0.15(40 - y) + 0.33y = 0.21•40
6 - 0.15y + 0.33y = 8.4
0.18y = 2.4
y = 13¹/₃
x = 40 - 13¹/₃ = 26²/₃
8.605
This number is bigger than 6.604 and it is smaller than 8.643
:)
