9. in a certain salad dressing, the ratio of vinegar to oil is 4 to 3. how much of each is in 735 milliliters of dressing?

Step-by-step explanation:

It's laborious to mention that the oil represents; the eight or the five in your original question. To get on the safe facet i will do each.  

When you have to be compelled to total proportions the simplest certain fireplace ne'er fail methodology is to show them into a try of fractions. there'll be one unknown that you then solve for. Let Maine demonstrate.  

You are given the proportion  

8 : 5  

Let's assume that is oil to vinegar quantitative relation.  

We ar then told we've seven liters of vinegar. and that we need to understand the quantity of oil. All we'd like to try and do is line up the 2 proportions and place a letter within the place of the unknown:  

8 to 5  

x to 7  

If we tend to flip those into fractions by swing a line between the highest and bottom numbers we tend to get  

8/x = 5/7  

The we tend to solve the equation to grant x = fifty six / five, or 11.2  

If I've got it wrong {and we tend to|and that we} have the vinegar to grease quantitative relation we do this:  

8 to 5  

7 to x  

which gives USA the equation 8/7 = 5/x that solves to be x = 35/8, or 4.375.

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b