P7

Systems Of Equations

100

For what value of B would the following system of equations have an infinite number of solutions?

3x+5y=27

12x+20y=3b

(A) 36

(B) 27

(C) 36

(D) 81

(E) 126

200

suppose a model airplane club publishes a newsletter. expenses are .90 for printing and mailing each copy, plus $600 total for research and writing. the price of the newsletter is $1.50per copy. how many copies of the newsletter must the club sell to break even?

x=1000 

They must sell 1000 copies to break even.

300

Your teacher is giving you a test worth 100 points containing 40 questions. there are two-point and four-point questions on the test. how many of each type of question are on the test?                            X= 2pt questions, Y=4pt questions

30 2pt questions

10 4pt questions

400

A movie theater sells tickets for $8.00 each, with seniors receiving a discount of $2.00. one evening the theater sold 525 tickets and took in $3580 in revenue. How many of each type o ticket were sold?

x=#of $8 tickets    Y=#of $6 tickets

215 $8 tickets

310 $6 tickets

500

8 pair of jeans and 10 shirts cost $80. The cost of 9 pair of jeans and 5 shirts is $65. Find the cost of each pair of jeans and each shirt.   

 X=Jeans        Y=Shirts

X=5     Y=4

Linear Equations

100

Solve this equation

6r+7=13+7r

{-6}

200

Solve this Equation

13-4x=1-x

{4}

300

Solve this Equation 

-7x-3x+2=-8x-8

{5}

400

Solve this Equation

-8-x=x-4x

{4}

500

Solve this Equation

-14+6b+7-2b=1+5b

{-8}