Answer:
Median: 88.5
Mean: 69.75
Step-by-step explanation:
Mean: add all numbers and divide by the amount of numbers.
Median: find the center most number. If none exist, take the two center most numbers and divide them by 2.
Mean: 12+88+89+90
279/4
69.75
Median:
(88+89)/2
177/2
88.5
Answer:
A. x=5,y=6
Step-by-step explanation:
Add y to both sides of the equation.
x=−1+y
x−3y=−13
Replace all occurrences of x with −1+y in each equation.
−1−2y=−13
x=−1+y
Solve for y in the first equation.
y=6
x=−1+y
Replace all occurrences of y with 6 in each equation.
x=5
y=6
The solution to the system is the complete set of ordered pairs that are valid solutions.
(5,6)
The result can be shown in multiple forms. Equation Form: x=5,y=6
Answer:
the second option is the correct answer
Answer:
(12 ÷ 4) × (18 ÷ 6)
Step-by-step explanation:
(12 ÷ 4) × (18 ÷ 6)
If we solve this or simply this, we would get 9 as our result.
Let's solve and see. Mind you, we've used each of the given numbers just once in the expression.
Thus:
(12 ÷ 4) × (18 ÷ 6)
Solve the parentheses first
3 × 3 = 9.
Therefore,
(12 ÷ 4) × (18 ÷ 6) = 9