Sewanhaka High School
Math 8
Per:________________
Name:________________________________
Mrs. Lidowsky, Principal
Mr. Long, Teacher
Date:_____________________
H.W. #46: Ditto
DO-NOW #46: Answer the following questions. Show work.
1) Solve for q
2) Check:
2
7
2
7
(14q + ) – 3q = 9
(14q + ) – 3q = 9
7
2
7
2
Topic: Expressions and Equations
Main Idea: More on using a System of Equations to Solve Word Problems
Aim:
RECALL
NOTES
Sharon works in a bookstore where she has been
allotted $22,500 to purchase either hard-cover
books at $12 each, or soft-cover books at $3 each,
or some combination of both. If Sharon decides to
buy a total of 4,500 soft and hard cover books,
how many hard-cover books and soft cover books
can she purchase?
The sum of Sally’s age plus twice Tomas’ age is
12. The difference of Sally’s age and Tomas’ age
is 3. Write and solve a system of equations
algebraically and graphically to find their ages.
Interpret the solution.
Drill: Answer the following questions: Write a
system of equations in terms of two variables that
can be used to help solve the problem. Make sure
to check your answer.
1) Margie is responsible for buying a week’s
supply of food and medication for the dogs and
cats at a local shelter. The food and medication
and for each dog cost twice as much as those
supplies for a cat. She needs to feed 164 cats and
24 dogs. Her budget is $4240. How much can
Margie spend on each dog for food and
medication?
2) Elaine bought a total of 15 shirts and pairs of
pants. She bought seven more shirts than pants.
How many of each did she buy?
Summary:
If time: Answer the following questions: Write a
system of equations in terms of two variables that
can be used to help solve the problem. Make sure
to check your answer.
Together, Preston and Horatio have 49 video
games. Horatio has 11 more games than Preston.
How many games does each person have?