Ratios
For a science experiment, Jack adds 1 tsp of salt to 3 tsp of water. Mika adds 4 tsp of salt to 9 tsp of water. Whose water is saltier?
Mikas. When each solution has 9 tsp of water, Mika's has more salt
Susan has a 12 inch board for constructing a wooden chair. The directions say to use a board that is 29 centimeters long. Is her board long enough to cut? (1 inch= 2.54 centimeters)
Yes,
Emma is saving for a bicycle that costs $300. This month, she reaches 60% of her goal, how much money has she saved?
$180
A fish tank is a right rectangular prism that is 10 1/2 in long, 10 in. wide, and 12 1/3 in tall. How many cubic inches of water are needed to fill the tank?
1,295 in ^3
1/2 / 2/3
3/4
Tulsi and Gary are competing in a basketball free throw competition. Tulsi's ratio of free throws made to free throws missed is 3 to 5. Gary's ratio of free throws made to free throws made missed is 10 to 15. Who has better ratio for making free throws?
Gary, when the number missed is the same Gary makes more free throws
Shannon test drives a car in Germany and drives 95 km per hour. What is the speed in miles per hour?
58.9/ per hour
Justin needs to make 80 illustrations for an art book. He has made 40% of the illustrations. How many illustrations does he still need?
48
The base of a right rectangular prism is 4 2/3 mm by 3 mm. The height is 5 1/2 mm. What is the volume of the prism?
77 mm ^3
2/5 / 3/4
8/15
a store sells two types of cleaning solutions. Brand X has 4 ml of white vinegar for every 20 ml of water. Brand Y has 5 ml of white vinegar for every 30 ml of water. What mixture has a higher concentration of vinegar?
Brand X, when each solution has 60 ml of water brand x has more vinegar.
Jason runs 440 yds in 75 seconds. At this rate, how many minutes does it take him to run a mile?
5 minutes
In a classroom of 28 students, 75% of the students have met their reading goal. How many students met their reading goal?
21 students
a koi pond is in the shape of a right rectangular prism that is 2 1/2 yd long, 3 yd wide, and 2 yd high. The pond is 1/3 full of water. what is the volume of the water in the pond?
5 yd^3
3 1/2 / 7/8
4
tommie and althea plant a summer garden in their backyard. althea plants 3 rows of carrots for every 4 rows of pepper plants. tommie plants 2 rows carrots for every 1 row of pepper plants. if althea plants 9 rows of carrots and tommie plants twice that amount, who plants more rows of pepper plants?
when althea plants 9 rows of carrots, she plants 12 rows of pepper plants. when tommie plants twice as many rows of carrots, 18 she plants 9 rows of pepper plants so althea plants more rows of pepper plants
For every 140 ft. that Kelly rides on her bicycle, the wheels turn 20 times. About how many times do the wheels turn in 5 miles.
about 3,771 times (3,771. 43)
25% of 60
15
Alan is a paleontologist who collects dinosaur fossils. He keeps each fossil in a cube shaped box with edges that are 1/2 feet long. Alan keeps the boxes in a storage bin. the storage bin is a right rectangular prism that is 2 1/2 ft long, 2 ft wide, and 2 ft. tall. How many boxes can Alan keep in the bin?
80 boxes
3 3/5 / 1 3/4
72/35
john and ryan are trying to earn their archery merit badges. Each boy has 30 arrows and must hit the center of the target more than 10 times. John hits the center 1 time for every 3 arrows he shoots. ryan hits the center 2 times for every 5 arrows he shoots. Which boy earns an archery merit badge?
Ryan, when they each shoot 30 arrows, John hits 10 and Ryan hits 15
Boxes of granola are on sale at a price of 2 for $4.50. There are 12 ounces of granola in each box. What is the unit price in dollars per pound?
$3.00 per pound
65% of 400
260
Neelam is pouring sand into a clear box to make sand art. The box is a right rectangular prism, and the base of the box is 7 in by 2 1/2 in. She pours in red sand until the volume of the sand is 26 1/4 in.^3. Then she pours in blue sand. Now the volume of the sand is 43 3/4 in ^3. How much does the level of the sand rise when Neelam adds the blue sand?
1 in.
1 2/3 / 2 1/4
20/27