Ratios
The ratio of boys to girls is 3 to 5. If there are 12 boys in class, how many girls are there?
20 girls
Write the inequality for this situation:
x is greater than or equal to 12
Check Boards
x + 3.8 = 17.1
x = 13.3
The ratio of cats to dogs at the shelter is 2 to 3. If there are 15 animals at the shelter, how many are cats?
There are 6 cats.
Write the inequality that represents the situation:
No more than 48 students can fit safely on the bus.
Check boards
x - 3/4 = 1 2/3
x = 11/12
Frankie drove 150 miles in 3 hours. At this rate, how many miles can be driven in 7 hours?
350 miles
Graph the inequality: x is less than or equal to 0.5
Check boards
8w = 20
w = 2.5 or 2 and 4/8 or 2 and 1/2
Jose paid $11.34 for a 6-pack of Gatorade. Express the price per bottle as a unit rate.
$1.89 per bottle
Which number IS NOT a solution to the inequality?
x < 2.7
2.4, 2.1, 1.9, 2.7, 2.5
2.7
n / 6 = 2.5
n = 15
Mario makes 3 out of every 5 shots taken at soccer practice. Eduardo makes 2 out of every 3 shots taken at soccer practice. If both students take 30 shots at practice, who scores more goals? How many more goals does he score?
3/5 = 18/30, 2/3 = 20/30 so Eduardo scores 2 more goals than Mario.
x + 9 < 14
x < 5
A gym full of students, s, is split evenly into 8 groups. Each group has 16 students in it. How many students are in the gym?
128 students