Ratios

If 39 of the 126 students in the band are female, what is the ratio of female to male students in the band? Write the ratio in lowest terms as a fraction or with a colon.

13:29

You are making a colorful cake for a birthday party and need to use 5 drops of food coloring for every 6 ounces of icing. How many drops of food coloring do you need if you are using 18 ounces of icing?

15

The ratio of 1.1 to 35 is the same as the ratio of 5.5 to

175

It was recently estimated that homes without children outnumber homes with children by about six to five. If there are 3641 homes in a county, how many of them are homes without children?

1986

9:7=__:21

27

A bag contains the following marbles: 10 black marbles, 6 blue marbles, 14 brown marbles, and 18 green marbles. What is the ratio of blue marbles to black marbles? Express your ratio as a fraction or with a colon.

3:5

6:7=__:56

48

An election is over and a new city council member has been elected. The new councilman received 5 votes for every vote received by his opponent. The new councilman received 2580 votes. How many votes did his opponent receive?

516 votes

Instructions for a chemical procedure state to mix salt, baking soda, and water in a 18:9:19 ratio by mass. How many grams of salt would be required to make a mixture that contains 57 grams of water?

54

The ratio of 1.4 to 29 is the same as the ratio of 2.8 to

58

One group (A) contains 165 people. Three-fifths of the people in group A will be selected to win $15 fuel cards. There is another group (B) in a nearby town that will receive the same number of fuel cards, but there are 268 people in that group. What will be the ratio of nonwinners in group A to nonwinners in group B after the selections are made? Express your ratio as a fraction or with a colon.

66/169

A bag contains the following marbles: 10 black marbles, 6 blue marbles, 14 brown marbles, and 18 green marbles. What is the ratio of green marbles to brown marbles? Express your ratio as a fraction or with a colon.

9:7