Answer:
Step-by-step explanation:
i didnt exactly answer this but i found someone who did
(pasted) i still hope it helps
Let x and (40L-x) represent the 20% and 4% solutions respectively
Mixing the 20% and 1% to form 40L of 15% solution
.20x + .04(40L-x) = .15*40L
.16x = .11*40L
x = .11*40L/.16
x = 27.5L, the amount of the 20% solution.
12.5L,the amount of the 4% solution (40L - 27.5L)
CHECKING our Answer
.20*27.5L + .04*12.5L = 5.5L + .5L = 6L = .15*40L
Which tells us incidentally there is 6L of disinfectant in the final solution.
Equivalent fractions have the same value even if written differently. The smallest common multiple of all the denominators in a group of fractions is the least common denominator. Fractions cannot be used to show the relationship between part of a group and the whole group.
Answer:
x=9/7
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Your answer will be 17 hope this helps :)
