Algebra Unit 2

Write the equation

100

the sum of 5 times a number m and 12 is equal to 27

5m+12=27

200

Write a sentence for the equation : 5x²+2=22

five times x squared plus two is/equals 22

300

A concert venue surveyed 680 attendees about the concession stand. Of those that visited the concession stand, 527 said that the prices were excessive, and the remaining 44 did not. Write an equation to find the number of attendees (a) who did not visit the concession stand. 

(527+44)+a=680

400

Write two equations that are equivalent to:

3+10p=5

10p=2

p=0.20

500

A park has a ginkgo tree, a dogwood tree, and 2 spruce trees. The spruce trees are 8 years old. The ginkgo tree is 2 years less than 3 times the age of the dogwood tree. The ginkgo tree is half the sum of the ages of the dogwood and both of the spruce tree. Write and solve an equation to find the ages of the ginkgo and dogwood trees.

3d-2=1/2(d+8+8)

ginkgo tree is 10 years old and the dogwood is 4 years old

Solve for the variable

100

n-8=5

n=13

200

3x+15=45

x=10

300

1/5(t)=10

t=50

400

5(2y+1)=4y+10

y=5/6

500

Mrs. Ladwig has to write this one 

x=20

absolute value

100

|3x-6|=12

x=-2

x=6

200

Athermometer is accurate +-2* F. Write an absolute value equation that can be used to find the greatest and least possible temperatures if the thermometer is reading 17*

|t-17|=2

Formulas

100

On a map of Texas, the distance between Dallas and Houston is 4.8 inches. If 1 inch =50 miles, what is the distance in miles between the two cities?

240 miles

200

The volume of a right pyramid is given by the formula V=1/3bh

Where b is the area of the base and h is height. Solve for h

h=3(v/8)

300

Solve the formula for the circumference of a circle, C=2(3.14)r

r=c/2(3.14)