Modeling Problems (Systems of Equations)

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Mathematics

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8th - 10th Grade

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Practice Problem

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Easy

Joseph Ochiltree

Used 6+ times

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7 Slides • 6 Questions

Modeling Problems (Systems of Equations)

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you might want to have a calculator nearby!

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Multiple Choice

Victoria wants to buy strawberries and kiwi to make a fruit tart. Strawberries cost $4.50 per pound and kiwi cost $3 per pound.

How much does she spend if she buys x pounds of strawberries and y pounds of kiwi?

y=4.50x+3

4.50+x=3+y

4.50x+3y

good job!!!!!

Multiple Choice

Kaj and some friends are going to the movies. At the theater, they sell a bag of popcorn for $4.75 and a drink for $3.75.

How much would it cost if they bought 6 bags of popcorn and 3 drinks?

$4.75\left(3.75\right)+6\left(3\right)$

$4.75\left(6\right)+3.75\left(3\right)$

$4.75+6+3.75+3$

Multiple Choice

Kaj and some friends are going to the movies. At the theater, they sell a bag of popcorn for $4.75 and a drink for $3.75.

How much would it cost if they bought 631 bags of popcorn and 348 drinks?

$4.75\left(3.75\right)+631\left(348\right)$

$4.75\left(631\right)+3.75\left(348\right)$

$4.75+631+3.75+348$

Open Ended

Kaj and some friends are going to the movies. At the theater, they sell a bag of popcorn for $4.75 and a drink for $3.75.

Suppose you knew that Kaj bought x bags of popcorn and y drinks for a total price of $66. Write an equation that reflects this information.

Type response here

Give it a try! (write in your notebook)

Cameron works as a salesperson at an electronics store and sells phones and phone accessories. Cameron earns a $11 commission for every phone he sells and a $2.50 commission for every accessory he sells. On a given day, Cameron made a total of $361 in commission from selling a total of 56 phones and accessories. Determine the number of phones sold and the number of accessories sold.

Stuff for today

We're practicing "modeling problems" (writing and solving equations related to realistic situations)
Assignment: on Deltamath
On Wednesday, there will be a formative assessment on KPI 3.1 (Systems of Equations)
I really recommend Deltamath to help you review for that!!!

Modeling Problems (Systems of Equations)

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