Answer:
B
Step-by-step explanation:
40x + 80
50x + 50
add them together
So the best way to do these is concentration1 (%) × volume1 = concentration2 × volume2
Or C1V1 + C2V2 = C3V3, where C1 = 100% (bc ALL pecans), V1 = 6 lbs, C2 = 70%, C3 = 82%:
100%×6 + 70%×v2 = 82%×(6+v2)
100%=1.00, 70%=.7, 82%=.82
note: if none is poured out then v3 = v1+v2
6 + .7v2 = .82 (6+v2)
6 + .7v2 = 4.92 + .82v2
6 + .7v2 -.7v2 = 4.92 + .82v2 -.7v2
6 = 4.92 + .12v2
6-4.92 = 4.92-4.92 + .12v2
1.08 = .12v2
.12v2/.12 = 1.08/.12
v2 = 9 lbs
that's only v2!!!
For the final poundage, we need v3:
v3 = 6 + v2 = 6 + 9 = 15 lbs
Answer:
84%
Step-by-step explanation:
if 16% is lying the opposite of that is 84% which is not lying
this means that 84% of the male college students do not lie
The question is an illustration of equivalent ratios and similar triangles.
<em>The true option is: </em>
<em />
From the diagram, we have:
---- This is so because both lines are marked once
Also, we have:
---- This is so because both lines are marked twice
Divide both equations
![\frac{WU}{WV} = \frac{UR}{VS}](https://tex.z-dn.net/?f=%5Cfrac%7BWU%7D%7BWV%7D%20%3D%20%5Cfrac%7BUR%7D%7BVS%7D)
Hence, the true option is: ![\frac{WU}{WV} = \frac{UR}{VS}](https://tex.z-dn.net/?f=%5Cfrac%7BWU%7D%7BWV%7D%20%3D%20%5Cfrac%7BUR%7D%7BVS%7D)
Read more about similar triangles at:
brainly.com/question/19739157
Since a and c in this equation are perfect squares, you know that the value of the factored form is going to be the (sqrt of a*d added to the sqrt of 81)^2, making(d+9)^2