Answer:
59
Step-by-step explanation:
(360-92-150)/2
= 118/2
= 59
Answered by GAUTHMATH
Answer:
- 6 2/3 qt 80%
- 13 1/3 qt 20%
Step-by-step explanation:
It is often convenient to solve a mixture problem by letting a variable represent the quantity of the higher-concentration contributor to the mix.
__
We can let x represent the number of quarts of 80% solution needed. Then (20-x) is the number of quarts of 20% solution needed. The amount of salt in the final mix is ...
0.80x +0.20(20-x) = 0.40(20)
0.60x = 0.20(20) . . . . . . . . subtract 0.20(20) and simplify
x = 20/3 = 6 2/3 . . . . . . . . . divide by 0.60; quarts of 80% solution
(20 -x) = 13 1/3 . . . . . . . . . . amount of 20% solution needed
The teacher should mix 6 2/3 quarts of 80% solution with 13 1/3 quarts of 20% solution.
So to start you will need to divide by -5 then -5 divided by -5 cancelle
<span>(38-63)×6÷Z
=</span><span>(38-63)×6÷84
=-25</span>×6÷84
=150
=1 66/84
= 1 33/42
Answer:
the answer is (-1,2), hope this helps.
