What's the Variable
a=4
x+9=28
x=19
3h=27
h=9
Use the equation P = 4s to calculate the side lengths of a square with a perimeter of 28 feet.
s=7
What is the opposite of subtraction?
Addition
6+5=b+5
b=6
26+g=34
g=8
5c=40
c=8
The equation A = bh is used to calculate the area, A, of a parallelogram with base, b, and height, h. Calculate the area of a parallelogram with a base of 15 inches and a height of 9 inches.
A=135
What is the opposite of division?
Multiplication
x+3=2+6
x=5
g-5=9
g=14
6=z÷2
z=12
Use the equation A = bh to calculate the height of a parallelogram with an area of 36 square inches and a base of 9 inches.
h=4
What is the opposite of addition?
Subtraction
3a=6
a=2
7+x=7
x=0
9t=54
t=6
The equation P = 4s is used to calculate the perimeter, P, of a square with a side length, s. Calculate the perimeter of a square with side lengths that are each 12 meters long.
P=48
What is the opposite of multiplication?
Division
6+2=4q
q=2
5=a-5
a=10
b÷7=1
b=7
The equation P = a + b + c is used to calculate the perimeter, P, of a triangle with side lengths a, b, and c. Calculate the unknown side length for a triangle with a perimeter of 25 meters and two sides measuring 7 meters each.
a=11 or b=11 or c=11
If there is fraction, you should multiply by what?
The reciprocal or opposite