Simplifying Expressions
10x-x
9x
2x+3x = 10
5x=10
so
x=2
Create an Equation (you don't need to solve) from the following scenario
The price of an ice cream cone increases 20% to $2.40. What was the original price of the ice cream cone? (let x=original price of ice cream cone)
x+0.20x=2.40
Create an Equation (you don't need to solve) from the following scenario
Barcelona scored 2 more goals in their game against Real Madrid than they did in their game against Bayern Munich. If they scored 6 goals total, how many goals did Barcelona score against Bayern Munich?
x+ x+2=6
If it rains 4 inches in 7 hours, what is that rate that it is raining, in inches per hour?
4/7 inches per hour
3x+5x+2x
10x
-5x+2x=-9
-3x=-9
so
x=3
Create an Equation (you don't need to solve) from the following scenario
The size of a class decreases 33% to 15 people. What was the original size of the group? (let x=amount of people in original group)
x-0.33x=15
Create an Equation (you don't need to solve) from the following scenario
Eduardo bought peanut butter and jelly on sandwhiches. He spent 16 combined, but spent 3 times as much on jelly as he did on peanut butter. How much did he spend on peanut butter? (let x=money spent on peanut butter)
x+3x=16
Skylar is pouring a concrete sidewalk. If she takes 7 minutes to pour 19 ft of sidewalk, what is her rate of pouring sidewalk, in ft per minute?
19/7 ft per minute
4+5x-1
5x+3
or
3+5x
x+3x-1=11
4x-1=11
4x=12
so
x=3
Create an Equation (you don't need to solve) from the following scenario
A bicycle is on a 67% sale and costs $35. What was the original price of the bicycle? (let x=original price of bicycle)
x-0.67x=35
Create an Equation (you don't need to solve) from the following scenario
Bruce at twice as many hot dogs and hamburgers this year. If he ate 38 hot dogs and hamburgers this year, how many hamburgers did he eat? (let x=number of hamburgers)
x+2x=38
6x+5-x+2
x+0.25x=5
1.25x=5
x=4