solve for r
r+5=6
r=1
This equation shows how the cost of a cab ride depends on the distance in miles.
c = 3d
The variable d represents the number of miles driven, and the variable c represents the cost in dollars. If a cab ride is 2 miles long, how much will it cost?
c = 6
The entire high school marching band is going on a field trip. The number of parent chaperones required depends on how many students are going, according to school district policy.
p = the number of parent chaperones required on the trip
s = the number of band students on the trip
Which variable is the dependent variable?
p = the dependent Variables
2q=10
solve for q
q=5
This equation shows how the amount of cheese Max has left is related to the number of sandwiches he makes.
c = –2s + 13
The variable s represents the number of sandwiches he makes, and the variable c represents the amount of cheese remaining. If Max makes 3 sandwiches, how many pieces of cheese will he have left?
c = 7
The Harrison Coffee House brews fresh-roasted coffee beans to serve to their patrons. The more patrons they have in a day, the more coffee they will need to brew.
p = the number of patrons
c = the amount of coffee they will need to brew
Which variable is the independent variable?
P = Independent
solve for u
u -3 = 4
u = 7
This equation shows how the accuracy of Paul's watch is related to how long it's been since he last set it.
s = d + 12
The variable d represents the number of days passed since Paul last set his watch, and the variable s represents how many seconds behind the watch is. How many days has it been since Paul last set his watch if the watch is 20 seconds behind?
s = 8
Bryant owns a jewelry shop and sells, among other things, diamond rings. He has a chart that shows how the cost of a diamond corresponds to its size. The bigger the diamond, the greater its cost.
s = the size of a diamond
c = the cost of a diamond
Which variable is the independent variable?
c = Independent
solve for j
3j = –12
-4
This equation shows how the total number of hair bands Naomi owns is related to the amount of money she spends on additional hair bands.
h = 9d
The variable d represents the amount of money she spends on additional hair bands, and the variable h represents the total number of hair bands she owns. How much money does Naomi need to spend on new hair bands in order to own a total of 18 hair bands?
h = $2
Solve for t.
t/2 = 2
t = 4
This equation shows how the time required to screen-print a batch of shirts is related to the number of shirts in the batch.
t = s + 2
The variable s represents the number of shirts in the batch, and the variable t represents the time required to screen-print the shirts. How long does it take to screen-print a batch of 8 shirts?
t = 10