To find the amount of the donation, divide 27 by 3.

The answer is 9.

A proportion is an amount that is part of a whole. There arestudents in the class in total. This question asks for the proportion that are juniors. There arejuniors out of学生,因此比例是:

240 real miles is represented by 3 map inches, making this a ratio ofreal miles per map inch.

Therefore, one and three-fourths inches represents

miles, the distance between Charlesville and Petersburg.

The ratios that are set equal to each other in a proportion must compare the same quantities in the same order.

In each ratio, we can put number of map inches in the numerator and the number of actual miles in the denominator.

One ratio is two map inches to twenty-five actual miles (the map scale); this ratio is.

The other ratio is eight map inches toactual miles (the distance between Pierce Springs and Buchanan Falls); this ratio is.

The proportion statement that sets these equal to each other is, and is therefore the correct choice.

由于这是一个proportion, you can cross-multiply. Once you do that, the left side isYour right side is. Set those equal to each other. Then, combine like terms. Subtractfrom both sides so that the equation is now. Divide both sides byYour answer is

The ratio of ounces of cola to ounces of grape soda in the initial mixture can be expressed as. It must be equal to that of liters of cola to liters of grape soda in the mixture Michelle will make for the party, which, since the number of liters of grape soda is unknown, is. Set these equal and solve for:

Set the cross-products equal to each other:

Michelle will useliters of grape soda in the final mixture.

What do we know? We know that there are 20 chips in the bag, and we know that Robert has eaten 8 of them. Thus, we can calculate that there arechips remaining. Of this remaining, Jeff has eaten 2 parts and Paul has eaten 1 part: that's 3 parts, so let's calculate how many chips constitute each part:

So, each part is equal to 4 chips.

Jeff has eaten 2 parts, sogives us our answer.

You can solve this problem using a proportion.

To solve for x, cross multiply.

9 dollars

You can use a proportion to solve this problem.

Cross multiply to solve for x.

To Solve:

Multiply theLola receives by thehours Phil worked:

Phil will give Lolaif he workshours.