Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
gaby236
Group Title
A druggist has two mixtures of a certain chemical and water, one containing 10% of the chemical and the other containing 40% of the chemical. How much of each mixture should he use to make 10 ounces that contain 25% of the chemical?
 2 years ago
 2 years ago
gaby236 Group Title
A druggist has two mixtures of a certain chemical and water, one containing 10% of the chemical and the other containing 40% of the chemical. How much of each mixture should he use to make 10 ounces that contain 25% of the chemical?
 2 years ago
 2 years ago

This Question is Closed

malical Group TitleBest ResponseYou've already chosen the best response.0
Really? We just answered this for you.
 2 years ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
i need help please
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
x+y = 10 .1x + .4y = (.25)10
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
?? what about 7.5 solve system using substitution y = 10x > .1x +.4(10x) = 2.5 ... solve for x
 2 years ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
answer is 2.5
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
no...show your steps so i know what you did wrong
 2 years ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
@dumbcow my answer is 1
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
for x? no, by plugging 1 in you can see that both sides will not equal each other seems like you are guessing
 2 years ago

gaby236 Group TitleBest ResponseYou've already chosen the best response.0
okey men isx ounces of 10% soln mixed with (10 – x) ounces of 40% soln. as total final volume is 10 ounces amount of chemical in x ounces = 0.1x amount of chemical in (10 – x) ounces = 0.4(10 – x) = 4 – 0.4x amount of chemical in 10 ounces = 10 × 0.25 = 2.5 chemical balance 0.1x + 4 – 0.4x = 2.5 0.3x = 1.5 x = 5 ounces of 10% mixed with (10 – 5) = 5 ounces of 40% to give 10 ounces of 25%
 2 years ago

dumbcow Group TitleBest ResponseYou've already chosen the best response.1
yes solution is (5,5) how do you go from guessing to writing a well laid out solution ...haha
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.