Trapezoid Area = (Bases / 2) * Height
20 cm² = 5 * Height
Height = 4 cm
Answer:
10.1%
Step-by-step explanation:
The first thing we should do is calculate the total volume of the solution when mixing them would be:
0.7 + 0.3 = 1
Now, we have that the resulting concentration (x) would be equal to the sum of the multiplications between the volumes and the concentrations to be mixed, as follows:
x * 1 = 0.7 * 0.05 + 0.3 * 0.22
x = 0.035 + 0.066
x = 0.101
That is, the concentration of the resulting mixture would be 10.1% (0.101 * 100)
3x + 5 (first plug in 2 for x )
3(2) + 5 =
6 + 5 = 11
Hope this helps . Give brainliest
Answer:.42
Step-by-step explanation:
