Saturday
July 26, 2014

Homework Help: Solving two step equations

Posted by Gabby on Monday, September 23, 2013 at 10:44pm.

1) Which of the following is a solution to the equation y=3x-1?
(4,1)***
(2,5)
(4,3)
(0,-3)

2) Which equation represents the pattern in the table below?
(Sals and Carrie’s Ages)
Sal 3 5 8 13 15
Carrie 7 9 12 17 19

S=c+4***
S=4c
C=s+4
C+4s

3) Solve. 1/3x=12
X=4
X=15
X=36***
X=39

4) 3/2x-4=16
X=20
X=13 1/3
X= 15 1/3***
30

5) Use the given equation to find the solution to the following problem.
The equation 9.95 + 0.30s=c gives the cost c in dollars that a website charges for downloading songs. The variable s stands for the number of songs downloaded. Find the cost of downloading 35 songs.
C=$9.95
C=$20.45***
C=$144.45

6) Write an equation and solve to find the solution to the following problem.
You have $27 to spend at the mall and a coupon for $6 off at your favorite store. A t-shirt costs $11. How many t-shirts can you buy using your coupon and money?
1 shirts
2 shirts
3 shirts***
4 shirts

Am I right???

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