Solving Equations
P = R-C/N ; solve for R
PN+C=R
An attorney charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. If the attorney charges $1,000 total, how many hours did they work?
5 hours
Solve the following equation: (2(x-1))/3 = 10
What is x=16?
x=2y-z/4 ; solve for z
4x-2y = z
A canoe rental service charges a $40 transportation fee and $70 dollars an hour to rent a canoe. What is the cost of renting the canoe for 6 hours?
$460
Solve the following equation: 4x = 1
What is x=0.25?
d = (a+b+c)/5 ; solve for b
5d-a-c = b
a = 2(L-W) ; solve for L
a/2+w=L
A Tow Truck Driver charges $35 for a service call plus $70 per hour of service. Write an equation for this situation if the tow truck driver charges $165.50.
70h + 35 = 165.50
Solve the following equation: (4x/5)-10 = 4
What is x=17.5?
12x-4y=20 ; solve for y
(20-12x)/-4 = y
A - x = h(b+c) ; solve for b
(A-x)/h-c = b
A Surf Shop charges a $10 membership fee and $3.75 for each Board rented. If 5 boards are rented, what is the revenue?
$28.75
R = EI/Y ; Solve for E
RY/I = E
y = mx + b ; solve for b
y - mx = b
Amy has a small business making dessert baskets. She estimates that her fixed weekly costs for rent and electricity are $400. The ingredients for one dessert basket cost $4.50. If Amy made 80 baskets this past week, what were her total weekly costs?
$760