Percentages
What is 20% of $50
$10
Find the unknown side:
θ = 30
O= ?
H=10
= 5
Find the area:
Length = 10m
Width = 5m
= 50m
Substitute x = 6 into the expression 2x =
= 12
Solve for x in the equation:
x + 5 = 12
x = 7
Calculate a 20% decrease on $80
$64
Find the unknown side:
θ = 40
A = ?
H=15
= 11.49
Find the circumference of a circle with a radius of 7cm
= 43.98cm
Substitute y = 3 into the expression 5y + 4
= 19
Solve for y in the equation:
y - 3 = 10
y = 13
What is 65% as a decimal
0.65
Find the unknown side:
θ = 15
O = ?
A=20
= 5.36
Find the circumference of a circle with a radius of 12m
= 75.36m
Substitute a=7 and b=2 into the expression 3a−b
Solve for z in the equation:
4z = 20
z = 5
What is 96% as a decimal
0.96
Find the unknown angle:
θ = ?
O = 7
A=24
= 16.26 degrees
Find the area:
45cm^2
Substitute x=5 and y=4 into the expression x+2y
= 13
Solve for a in the equation:
a/2 = 9
= 18
What is a 35% increase on $70
$94.5
Find the unknown side:
θ = ?
A = 15
H=17
= 28.07 degrees
Find the area:
70cm^2
Substitute m=2 and n=8 into the expression 4m−2n
= 24
Solve for b in the equation:
3b + 4 = 19
b = 5