Equation Solutions
If x=7, does that make the equation 8x=56 true?
Yes. 8(7)=56 is true.
Graph the inequality t is less than or equal to -4.
Teacher checks answer in notebook. :)
Identify the independent and dependent variables.
The number of minutes, m, spent reviewing for an exam and the points, p, received on the exam.
m=independent
p=dependent
Solve for the variable.
t + 1/4=2 7/12
t=2 1/3
Yes. 3.00-2.56=0.44 is true.
Graph the inquality p> 10 on a number line.
Teacher checks number line. :)
Identify the variables.
the number of uniforms, u, to order for a football team and the number of players, p, on the team.
p=independent
u=dependent
April pays a dog-walking service $30 each week to walk her dog. Write an equation and solve it to find out how much money April would pay the company to walk her dog for 4 & 6 weeks?
Use the variable, w, to represent the weeks of dog walking and the variable, c, to show how much April would pay in total.
30w=c
April would pay $120 and $180.
x/27=3 If x=9 is the equation true?
No. 9/27=.33
Write an inequality for the situation.
Anna had a birthday party and could invite up to 10 friends.
f is less than or equal to 10.
Identify the variables.
The amount of wall space, s, in the bedroom and the amount of paint, p, needed to paint the bedroom.
s=independent
p=dependent
solve for b in this equation.
b/4.8=8.09
b=38.832
3/8x=3 3/8 Is the equation true if x=9?
Yes. The equation is true if x=9.
Ed's birthday is less than 16 days away. Ann writes the inequality d<15, where d equals the number of days to represent this. Is Ann correct? Explain.
Ann is not correct. The number 15 is also a possible number of days until Ed's birthday.
the number of hours, h, spent working and the amount of money, m, earned from working.
h=independent
m=dependent
Solve to find the value of x in x-3/4=5 1/6
x=5 11/12
If x=7 is the equation 2 1/4 + x= 9 1/8 true?
No. The equation is not true if x=7.
Mr. Daniels is organizing a class trip. He wants to spend less than $900. The bus rental costs $600. Mr. Daniels will also buy tickets that cost $9.50 per student.
Write an inequality to represent the number of students, y, that Mr. Daniels can bring on the trip.
9.5y<300
Identify the variables.
the amount of time, t, to finish a set of homework problems and the number of problems, p, given for homework.
t=dependent
p=independent
Solve for r in this equation.
3/5r=2
r= 3 1/3