Systems of Equations: Word Problems

Systems of Equations:

Word Problems

I CAN write a system of equations in real-world context and solve them by using the substitution method in real-world

Please get out your notes packet and open to the page labeled "Substitution Word Problems"

YOUR TURN!

Please solve #2. You will enter your answers on the next slide.

Fill in the Blank

#2, Part B:

How many months will it take for the total cost of both plans to be the same?

Fill in the Blank

#2, Part B:

What is the total cost when both plans are the same?

Multiple Choice

#2, Part C:

If Jenna has to sign a one-year contract, which plan will be more cost effective (cheaper)?

• Plan 1

• Plan 2

Please try #4 on your own

You will enter your answer on the following slide

Poll

#4) In #4 you wrote and solved a system of equations to find two mystery numbers.

Your equations should have been:

x + y = 50

x + 43 = 2y

Check your work.... did you get these as your two equations?

• Yep, I got them both correct!

• I got one of them correct

• Oops, I made a mistake and did not get either of them correct

Fill in the Blank

#4) For number 4, you wrote and solved a system of equations to find two mystery numbers. What were your solutions?

(Write your answer as NUMBER, NUMBER. For example, if your answers were 3 and 7, you would record it as: 3, 7 )

Tag! You're it :) Please solve #6.

Fill in the Blank

#6 - Length

Fill in the Blank:

The LENGTH of the rectangle is __?__ cm

Fill in the Blank

#6 - Length

Fill in the Blank:

The WIDTH of the rectangle is __?__ cm

Thanks for participating!

On the next slide, you will answer a quick question to let me know how you are doing with this material.

Poll

Rate your level of comfort with solving systems of equations using the substitution method:

• I feel great! It is pretty easy for me :)

• "Ish".... I feel okay with it, but could still use a little more practice

• "Meh".... I am struggling a little and would like some extra help