Answer:
Step-by-step explanation:
A math class has 5 girls and 5 boys in the seventh grade, 10 students in total. The probability of choosing one girl from this class is
A math class has 5 girls and 7 boys in the eighth grade, 12 students in total. The probability of choosing one girl from this class is
The teacher randomly selects a seventh grader and an eighth grader from the class for a competition. The probability that the students she selects are both girls is
Answer:
$3.78
Step-by-step explanation:
Given: The first group bought 6 slices of pizza and 4 soft drinks for $ 28.28.
The second group bought 5 slices of pizza and 4 soft drinks for $ 24.50.
To find: The cost of one slice of pizza.
Solution: Let the cost of one slice of pizza be $ x, and the cost of one soft drink be $ y.
As per question,
...(1)
...(2)
On subtracting equation 2 from 1 we have,
Hence, one slice of pizza costs $3.78.