From a mixture of vinegar and water which is 20% vinegar, 2 quarts are removed and replaced by pure vinegar. The results mixture is 49% vinegar. Find the number of quarts in the original mixture.

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.