math ratio question, please help?
A shade of paint is made by mixing white and red paint in a ratio of 1 to 3.
Which is the number of fluid ounces of red paint that would be needed to make 12 fluid ounces of this pink paint?
a.4
b.6
c.8
d.9
please help me to understand how to do this problem..i dont just want the answer i want to understand how to do it so i can do it myself…
Favorite Answer
Your problem is not a stupid as you think, but neither very difficult, I’ll try to explain it as well as I can.
The ratio is: 1:3
so, to get 4 ounces of pink paint (1+3) you need 1 ounce of white and 3 ounces of red.
In other words, you need one quarter of white plus three quarters of red to get one ounce of pink.
Let us suppose that:
X= white, Y=red, z= pink
If you need 12 ounces of pink, that means you have too multiplicate 12 per the above mentioned quarters, so the relation will be:
12 (1/4) X= 3X
12 (3/4)Y= 9Y
If you sum:
3X+9Y= 12 Z
So, to get 12 ounces of pink, you need 3 ounces of white, and 9 ounces of red.
That’s it.
If you need any help for painting, just call 😉
Have a nice time
.
So, you would need to divide 12 oz into 4 parts to determine how many oz’s are in a ‘part’. Then the number of oz’s of red is 3 X the oz’s in one part.
12 divided by 4 = ___
3 X ___ =___oz
I am using the common way one would state the ratio and that is that white was the first ‘color’ in the statement and red was the 2nd. So white is 1 part and red is 3 parts. Had the statement read ‘red and white paint’ then it would be 1 part red and 3 parts white.
you put 12 into the equation which would be
1:3 = x:12
divide 12 by the number in the 1st ratio which is 3 so 12/3 = 4
so put 4 into the 2nd ratio to become 4:12
from the 1st ratio you times 4 by 1 and 4 by 3 to get 4:12
put one over three equals x over 12. cross multiply.
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles