I need help with a few math problems. I will fan and medal!

Question

rebeccaxhawaii · Answer

which would be

unofficialllyy · Answer

1. Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 
5 liters of natural oil for every 7 liters of synthetic oil. If 290 liters of natural oil are used, how many liters of Petrolyn oil will be made?

unofficialllyy · Answer

@surjithayer

anonymous · Answer

5+7=12
$$petrolyn ~oil=\frac{ 12 }{ 5 } \times 290=?$$

unofficialllyy · Answer

got it, thanks. here's the next one.

2. The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 5 to 6. If there were 6248 total votes, how many no votes were there?

anonymous · Answer

5+6=11
$$no~votes=\frac{ 6 }{ 11 }\times 6248=?$$

unofficialllyy · Answer

I got 3,408

unofficialllyy · Answer

3. A certain drug is made from only two ingredients: compound A and compound B. There are 7 milliliters of compound A used for every 5 milliliters of compound B. If a chemist uses 370 milliliters of compound B, how many milliliters of the drug will be made?

anonymous · Answer

similar question ,
7+5=12
$$\frac{ 12 }{ 5 }\times 370=?$$

unofficialllyy · Answer

888. This is the last question

The ratio of men to women working for a company is  4 to 5 .If there are 135 employees total, how many men work for the company?

anonymous · Answer

4+5=9
men : total employee :: x: 135
find x

anonymous · Answer

$$\frac{ 4 }{ 9 }=\frac{ x }{ 135 },x=\frac{ 4 }{ 9 }\times 135=?$$

unofficialllyy · Answer

thanks a bunch!

anonymous · Answer

yw