2x+5=21
x = 8
5x-2=3x+4
x = 3
Solve the proportion.
5/t = 25/100
t = 25
What is the formula for percent of change?

What is the Pythagorean theorem?
a^2 + b^2 = c^2
8=a/3+6
a = 6
5m-13=3m+23
m=18
Solve the proportion.
3/4 = c/20
c = 15
Find the percent of change. When necessary, round tot the nearest percent. Describe the percent of change as an increase or decrease.
$4.50/hr to $5.00/hr
11% increase
Find the length of the hypotenuse with the given leg lengths.
a = 3, b = 4, c = ??
a = 3, b = 4, c = 5
Solve each equation.
3w+2-w=(-4)
w = (-3)
15+6x=45+8x
x = -15
Solve the proportion.
w/6 = 6/15
w = 2.4
Find the percent of change. When necessary, round tot the nearest percent. Describe the percent of change as an increase or decrease.
60 km/h to 45 km/h
25% decrease
Determine whether the given lengths can be sides of a right triangle.
a = 5, b = 12, c = 13
Yes
Solve each equation.
0.36p + 0.26 =3.86
p = 10
4(x+3)=7(x-4)
x = 10
Solve the proportion.
x/8 = (x-5)/6
x = 20
Find the percent of change. When necessary, round tot the nearest percent. Describe the percent of change as an increase or decrease.
$75,000 to $85,000
13% increase
Find the length of the hypotenuse with the given leg lengths.
a = 6, b = 8, c = ??
a = 6, b = 8, c = 10
Solve each equation.
(3y)/4 - y/2 = 5
y = 20
5-2(3-x)=4x+10
x=-11/2
Solve the proportion.
(d-2)/(d+9) = 3/14
d = 5
Find the percent of change. When necessary, round tot the nearest percent. Describe the percent of change as an increase or decrease.
$157 to $59
57% decrease
Find the length of the hypotenuse with the given leg lengths.
a = 10, b = 24, c = ??
Find the length of the hypotenuse with the given leg lengths.
a = 10, b = 24, c = 26