Just multiply $20 with $75 (oh by the way, thr money sign goes first!)
Mixture problem.
Ratio of 20% : 50% acids
=50-39 : 39-20
=11:19
total volume
=400L
vol. of 20% acid=400*(11/(11+19)=400*(11/30)=146.667 L
vol. of 50% acid=400*(19/(11+19)=253.333 L
Alternatively, use c=volume of 20%, d=vol of 50%
then
0.2c+0.5d=400*0.39
Since c+d=400, we have
0.2c+0.5(400-c)=400*0.39=156
solve for c:
0.3c=44
c=146.667 and d=400-c=253.333 as before.
The computation shows that there are 8640 combinations.
<h3>How to compute the value?</h3>
From the information, we are to find the combination when he rolls a cube that has six sides labeled 1 to 6, spins a spinner with three equal-sized sections labeled Walk, Run, Stop, and flips a coin.
This will be:
Cube = 6
Spinner = 3
Coin = 2
The combination will be:
= 6! × 3! × 2!
= 8640 ways
Therefore there are 8640 combinations.
Learn more about combinations on:
brainly.com/question/4658834
#SPJ1
the answer is 126
200 divided by 100 = 2
2 x 7= 14
14 x 9 = 126
Answer:
y = 2
Step-by-step explanation:
(4x+9y)-(4x+5y) = 14-6
4x-4x+9y-5y = 8
4y = 8
y = 2
Hope this helped!
