Mathematics Grade 7 15 min

Solve a system of equations by graphing: word problems

Solve a system of equations by graphing: word problems

What you'll learn

  • Identify all the factors of a given whole number between 1 and 100 with 80% accuracy.
  • Explain the difference between a factor and a multiple using at least two examples.
  • Apply the concept of factors to determine if a number is divisible by another number without using a calculator in at least 3 out of 4 attempts.
  • Determine if a number is prime or composite by identifying its factors and justifying the answer.

Tutorial Preview

1

Mia buys 1 pen and 2 pencils for $5. Leo buys 2 pens and 1 pencil for $4. Find the cost of each.

2

Runner A starts 2 miles ahead and runs 1 mph. Runner B starts at 0 and runs 2 mph. When do they meet?

3

A mix has 5 lbs of nuts. Almonds (x) cost $2/lb and walnuts (y) cost $1/lb. The total cost is $7. How many lbs of each?

Sample Practice Questions

Easy
1 soda and 1 pretzel cost $3. 1 soda and 2 pretzels cost $4. Find the costs (soda, pretzel).
0.(2, 1)
1.(1, 2)
2.(1, 1)
3.(2, 2)
Easy
Car A is at mile 1 and drives 1 mph. Car B is at mile 0 and drives 2 mph. When do they meet (hours, miles)?
0.(1, 2)
1.(2, 1)
2.(1, 1)
3.(2, 2)
Easy
A bag has 3 coins (dimes, nickels). The total value is 20 cents. How many of each (dimes, nickels)?
0.(1, 2)
1.(2, 1)
2.(0, 3)
3.(3, 0)

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Frequently asked questions

What grade level is "Solve a system of equations by graphing: word problems"?

Solve a system of equations by graphing: word problems is a Grade 7 Mathematics lesson on ExcelOS.

What will I learn in Solve a system of equations by graphing: word problems?

You'll be able to: Identify all the factors of a given whole number between 1 and 100 with 80% accuracy; Explain the difference between a factor and a multiple using at least two examples; Apply the concept of factors to determine if a number is….

Is "Solve a system of equations by graphing: word problems" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Solve a system of equations by graphing: word problems?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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