Soling Proportions Using Word Problems

the ratio of mammals to reptiles in the Pittsburgh Zoo is 12 to 5. if there are 72 mammals, how many reptiles are there?

• 12x=72

• 12x=5(72)

• 5x=12(72)

• 12(5)=72x

Kayla is an author. In 45 minutes, she is able to type 2970 words. How many words can Kayla type in an hour?

• 45 words

• 52 words

• 63 words

• 66 words

On Saturday Afternoon, Armand sent m text messages each hour for 5 hours and Tyrone sent p text messages each hour for 4 hours which of the following represents the total number of messages sent by Armand and Tyrone on Saturday Afternoon?

• 9mp

• 20mp

• 5m+4p

• 4m+5p

Heyzzel's favorite food is Elote Loco. She needs 1/4 cup of cheese for every 2 tablespoons of chili powder. If she uses 3 cups of cheese, how many tablespoons of chili powder will she need?

On a map, if one centimeter represents 25 kilometers, how many kilometers does 7 centimeters represent?

• 175

• 185

• 200

• 220

Which of the following is the correct set up of the proportion in this problem:

"Thirty-six is 30% of what number?"

3 out of every 8 skittles in a bag are yellow. If there are 16 skittles in the bag, how many are yellow?

• 1.5

• 6

• 10

• 4

• 9
• 12
• 18
• 1

Solve for x

• 79/8
• 8/79
• 79
• 8