Writing Equations
Writing Equations
Create an equation that represents the following expression.
Harvey's age doubled is 6
2x = 6
Lisa is baking bread. The recipe calls for 5 cups of sugar, but she has already put in 3 cups. Write an equations that can help Lisa determine how many more cups she needs?
c + 3 = 5
The car can hold less than 6 people.
c < 6
The dog weighs less than 12 pounds
x<12
Susan scored more than 3 goals at her game.
x>3
Create an equation that represents the following scenario.
Roman paid $150 to join a gym. He pays an additional $15 for every time he attends one of the club's live fitness classes. Let C = the total cost and n = the number of times he takes fitness classes.
C = 15n + 150
C = 150 + 15n
Money: a fitness club advertises a special for new members. Each month of membership costs $19, with an initial enrollment fee of $75. Write an equations to determine how many months were used when spending $227.
19m + 75 = $227
The class must raise at least $250.
f > 250
Joe read more than 20 books this year.
x>20
Ricky has less than $10 in his pocket
x<10
Writing Equations
Create an equation that represents the following expression.
A real estate agent receives a salary of $600 per week plus a commission of $250 per sale. Write an equations that gives the weekly income y in terms of sales x.
y = 600 + 250x
y = 250x + 600
Write an equation.
Five times a number increased by 8 is the same as 9 times the number decreased by 10.
5x+8=9x-10
The temperature must be higher than 211.9 degrees.
t > 211.9
There are atleast 20 students in the classroom
x≥ 20
Children 2 or under cannot ride the ride.
x≤ 2
Create an equation that represents the following scenario.
A sunflower in Julia's garden was 12 centimeters tall when it was first planted. Since then, it has grown approximately 0.6 centimeters per day. Write an equation expressing the sunflower's height, H, in terms of the number of days, d, since it was planted.
H = 0.6d + 12
Write an equation: Softball: This season a player scores 6 runs more than three times the number of runs she bats in. She scores 108 runs this season.
3b +6 = 108
The minimum cost will be $40.
c > 40
I can withdraw no more than $300 from the bank
x≤ 300
I need 30 minutes or more to get ready
x≥ 30
Writing Equations
Create an equation that represents the following expression.
A large factory sells its technological gadgets for $150 each. Before selling any of the gadgets, they had already spent $3000 on parts. Write an equation that represents the relationship.
y = 150x - 3000
Write an equation.
Twice the difference of a number and 5 is the same as 7 more that 3 times the number.
2(x-5)=3x+7
The speed must be no greater than 15 mph.
s < 15
Anyone 16 or older can drive the car.
x≥ 16
The deposit to the bank was more than $100
x>100