To avoid confusion, remember PEMDAS. This is the order of operation.
Parenthesis, Exponents, Multiply, Divide, Add, Subtract
21 ÷ 7 + 20 * 102 * 2 - 3
No parenthesis and no exponents, proceed to multiplication.
20 * 102 * 2 = 4,080
Then, perform division
21÷7 = 3
Then, do addition
3 + 4080 = 4083
Lastly, do subtraction
4,083 - 3 = 4,080
So, 21 ÷ 7 + 20 * 102 * 2 - 3 = 4,080
THEREFORE THE ANSWER IS 4,080
Answer:
15
Step-by-step explanation:
graph shows
postcards=15
shirts=10
pencils= 40
we're going to add postcards and shirts THEN comparing it to pencils
postcards and shirts=15+10= 25
pencils= 40
answer=40-25=15
Answer:
Step-by-step explanation:
Area for triangle is equal to half base time perpendicular height.
note that it's 10cm X 12 cm that's how you get cm²
Answer:
C
Step-by-step explanation:
After rotation the hexagon 180° you will have the same image that you started with.
A) 3x -2y = 16
B) x -2y = 4
Multiplying equation B by -1
B) -x +2y = -4 then adding it to equation A
A) 3x -2y = 16
2x = 12
x = 6
B) x -2y = 4
B) 6 -2y = 4
B) 2y = -2
y = 1
