menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
Ask a Question
Questions
Unanswered
Tags
Categories
Ask a Question
A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20 qt of a 40% salt solution. How many quarts of each solution should the teacher mix to get the desired result?
asked
Dec 22, 2019
226k
views
0
votes
A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20 qt of a 40% salt solution. How many quarts of each solution should the teacher mix to get the desired result?
Mathematics
college
Col
asked
by
Col
8.3k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
0
votes
The formula should be 0.3x + 0.7(20-x) = 0.4(20)
Simplifying it would get 3x + 7(20-x) = 4(20)
and: 3x + 140 - 7x = 80
then: 4x = 60
x = 15
So then for the 30% solution: 15 quarts
And for the 40%: 5 quarts
Rds
answered
Dec 28, 2019
by
Rds
8.1k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Oct 8, 2018
59.6k
views
A chemistry teacher needs to mix a 40% 40% salt solution with a 80% 80% salt solution to make 20 20 qt of a 70% 70% salt solution. How many quarts of each solution should the teacher mix to get the desired
HaulinOats
asked
Oct 8, 2018
by
HaulinOats
8.4k
points
Mathematics
high-school
1
answer
2
votes
59.6k
views
asked
Feb 5, 2021
10.6k
views
a chemistry teacher needs to mix a 20% salt solution with a 80% salt solution to make 15 qt of a 40% salt solution. how many quarts of each solution should the teacher mix to get the desired result?
Terco
asked
Feb 5, 2021
by
Terco
8.1k
points
Mathematics
middle-school
1
answer
5
votes
10.6k
views
asked
Jul 7, 2023
64.1k
views
A chemistry teacher needs to mix a 20% salt solution with a 80% salt solution to make 15 qt of a 40% salt solution. How many quarts of each solution should the teacher mix to get the desired result?20%
TheLV
asked
Jul 7, 2023
by
TheLV
8.6k
points
Mathematics
college
1
answer
0
votes
64.1k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org