Question

1 luisa reads 2 pages of her book every minute. at this rate, how many hours will it take her to read 300 pages? (60 minutes = 1 hour) 2 ray has 3\frac{1}{2} gallons of maple syrup. he fills nine 1 - quart bottles with syrup and gives them away. how many quarts of maple syrup does ray have left? (1 gallon = 4 quarts) 3 thomas has two kittens. he records the mass of one kitten as 2.2 kilograms and the mass of the other kitten as 1,890 grams. what is the total mass of the two kittens in kilograms? (1 kilogram = 1,000 grams) 4 kareem has a pencil that is 13.5 centimeters long and a crayon that is 87.5 millimeters long. how many millimeters longer is the pencil than the crayon? (1 centimeter = 10 millimeters) 5 stella needs fencing for the perimeter of a rectangular garden that is 16 feet long and 4 feet wide. the fencing she wants is sold in yards. how many yards of fencing will she need to buy for the entire perimeter? (3 feet = 1 yard) 6 mai bought eleven 12 - ounce bags of walnuts. how many pounds of walnuts did she buy? (16 ounces = 1 pound) 7 cassie has 10\frac{1}{2} feet of string to make 15 beaded bracelets. she needs 9 inches of string for each bracelet. does she have enough string to make all the bracelets? explain. (1 foot = 12 inches)

Explanation:

Problem 1

Step1: Find minutes to read 300 pages

Luisa reads 2 pages per minute. To find minutes for 300 pages, use \( \text{Minutes} = \frac{\text{Total Pages}}{\text{Pages per Minute}} \). So \( \text{Minutes} = \frac{300}{2} = 150 \) minutes.

Step2: Convert minutes to hours

Since 60 minutes = 1 hour, divide minutes by 60. \( \text{Hours} = \frac{150}{60} = 2.5 \) hours.

Step1: Convert gallons to quarts

Ray has \( 3\frac{1}{2} \) gallons. \( 3\frac{1}{2} = \frac{7}{2} \) gallons. Since 1 gallon = 4 quarts, total quarts = \( \frac{7}{2} \times 4 = 14 \) quarts.

Step2: Find quarts given away

He fills 9 one - quart bottles, so quarts given away = \( 9\times1 = 9 \) quarts.

Step3: Find remaining quarts

Subtract given away from total. \( 14 - 9 = 5 \) quarts.

Step1: Convert grams to kilograms

The second kitten has a mass of 1890 grams. Since 1 kilogram = 1000 grams, \( \text{Mass in kg} = \frac{1890}{1000}=1.89 \) kilograms.

Step2: Find total mass

The first kitten has a mass of 2.2 kilograms. Total mass = \( 2.2 + 1.89 = 4.09 \) kilograms.

Answer:

2.5 hours

Problem 2