Writing Equations
five more than a number is 32
5 + x = 32
r-38=9
r=47
True or False
x+6=17 when x =9
false
9+6=15 not 17
the temperature was below 32 degrees
x<32
draw the graph for
x>20
should be open circle on 20 and shaded to the right
Owen is making cookies for his mom's birthday. He has 2 1/4 cups of sugar to use to make cookies. The recipe calls for 1/3 cup of sugar for one batch. Which equation can be used to find b, the total number of batches of cookie Owen can make?
a) 2 1/4 x 1/3 = b
b) 1/3 x b = 2 1/4
c) 2 1/4 - b = 1/3
d) 2 1/4 divided by 1/3=b
b
n + 75 = 155
n= 80
True or false
x-8=12 when x=20
true
20-8=12
The cost was above $7
x>7
draw the graph for x<15
The athletic department sells tickets to the game. Each ticket is x dollars. write and equation if they made $320 from selling 120 tickets.
120x=320
3a=57
a=19
4r=52 when x=13
true
4(13)=52
52=52
a helicopter must fly less than 15,000 feet. Write and inequality to represent the airplane's height.
x<15,000
graph
x>-7
should be open circle on the -7 and shaded to the right
Mr. Megery drove 50 miles per hour to his friends house. If his friend is 300 miles away how many hours did he drive? write an equation
50h=300
d/14 =7
d=98
7x+10=59 when x=6
false
7(6)+10=59
42+10=59
52=59 not true
the temperature of the river was less than 1 degree
x<1
graph
x is greater than or equal to -5
graph should be filled in circle on the -5 and shaded to the right
If each game of mini golf costs $7 and you spend$42 how many games did you play? Write an equation to represent the problem situation. How many games did you play?
7x=42
x=6 games
f/28=24
f=672
6x+3=51 when x = 8
true
6(8)+3=51
48+3=51
51=51 true
The weight of a package is above 2.5 pounds.
x>2.5
**Double Jeopardy***
graph lxl<2
graph should have open circles on 2 and -2 and should be shaded in between those two numbers.