Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
Chapter Review
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Exercise 1 Page 225

Start by writing the ratio of salt cups to flour cups.

Ratio: 1:4
Meaning: For every 1 salt cup in the clay recipe, use 4 cups of flour.

Practice makes perfect
There are many different ways to compare amounts or quantities. A ratio is a comparison of two quantities by division. For example, the ratio of a to b can be written in two different ways. a/b or a: b We want to find the value of the given ratio. salt:flour Let's start by considering the given diagram!
We know that the recipe for the modeling clay requires 12 cup of salt for every 2 cups of flour. We can use this information to write the fraction that represents desired ratio. We will write the number of salt cups in the numerator and the number of flour cups in the denominator. l salt→ flour→ 12/2 Finally, we can simplify our fraction.
12/2
12* 2/2* 2
1/2* 2
1/4
1:4
The ratio is 14, 1 to 4, or 1:4. This means that for every 1 salt cup we use 4 cups of flour.