Equations from Word Problems
The fish tank drains at 6 cm per hour. When full, the water in the fish tank is 63 cm deep. It is currently 42 cm deep. Write the equation.
63-6h=42
15 -x = 20
x=-5
The sub shop charges $6 for a sandwich and $2 for each additional topping. Allie only has $12 in her pocket. Write an inequality to match.
6 + 2x is less than or equal to 12
Write the inequality.
Sally (s) has less money than Milly (m)
s<m
Every point on a line is a ____________________ to the equation.
solution or answer
Alex purchased a PS4 for $850. x games for $11.20 each. He spent a total of $934.80. Write an equation to find x.
850 +11.20x = 934.80
x/4 + 2 = 7
x=20
Drew is selling cookies to raise money. He is starting with $15 cash and is selling cookies for $5 a box. He needs to raise at least $200. Let x represent each box of cookies sold and write an inequality to match.
15 + 5x is greater than or equal to 200
Jillian (j) runs the same umber of miles or more than Katy (k)
j>=k
When you graph a system of equations, where is the answer located?
At the intersection of the points
Joann has $150 in McDonald's gift cards and spends $5 a week for breakfast. He now has $20 left. How many weeks has he bought breakfast?
26 weeks
3x + 14 = -22
x=-12
A train charges $1.25 per mile with a $3 ticket price. A bus charges .75 cents per mile with a $5 ticket price. Write the inequality used to find the number of miles a person would have to travel in the train for the total cost to be more than the total cost of the bus.
3 + 1.25m > 5 + .75m
Blue (b) has a minimum of $50 in his account
b > 50
The temperature on January 3 is 32 degrees is decreasing 6 degrees each hour. If the temperature is now -13 degrees, how many hours have passed.
7 hours
For what is the value of p?
4x - 12 = 6x + 4
x=-8
Movie Ticket charge a fee of $15 plus $8 per movie. Movie Center charges $10 per movie. How many tickets would a customer need to buy for the total cost of Movie Tickets to be the same or cheaper than Movie Center.
$15 +8x <= 10x
Jojo (j) spends no more than 3 hours studying
j <= 3
Miriam opened her account with $710 and withdrew $35 per week. Jaelyn opened her account with $570 and withdrew $25 per week. In how many weeks will their account be equal?
14 weeks
-4 + c/3 = -13
c=-27
Thanksgiving meals are bigger than other meals because your Grandma and Momma cook too much because all of your family shows up to eat (but not clean up the mess)!
True or False
True
Tilly (t) eats more than Barry(b)
t>b