Answer:
7, -1
Step-by-step explanation:
x - y = 8
x + y = 6 Subtract the 2 equations
-2y = 2
y = -1
Replace -1 into equation x + y = 6
x + -1 = 6
x = 7
Area of a rectangle is 27 cm²
Given:
Perimeter of a rectangle = 24 cm
Length = 3x
Width = x
p = 2(l + w)
24 = 2(3x + x)
24 = 6x + 2x
24 = 8x
24/8 = x
3 = x
Width = 3 cm ; Length = 3x = 3(3) = 9 cm
Area = length * width
= 9cm * 3 cm
Area = 27 cm²
Answer:
∠ A = 50°
Step-by-step explanation:
In a parallelogram, consecutive angles are supplementary, sum to 180°
∠ A + 130° = 180° ( subtract 130° from both sides )
∠ A = 50°
Answer:
1. 2,100 sec
2. 2 min and 43 sec
3. 1,470 min
4. 3 weeks, 1 day, 12 hours
5. 60 months
Answer:
The median is the average of all the numbers so you would first add all the numbers together which is 16+12+13+14+19+13+17+13=117
then you divide 117/8=14.6
Then your median is the middle number of all your numbers in numerical order
12, 13, 13, 13, 14, 16, 17, 19
which is 13 and 14, and between those two numbers is 13.5
Step-by-step explanation: