Illustrative Math - Algebra 1 - Unit 2- Lesson 8

Priya is buying raisins and almonds to make trail mix. Almonds cost $5.20 per pound and raisins cost $2.75 per pound. Priya spent $11.70 buying almonds and raisins. The relationship between pounds of almonds a, pounds of raisins r, and the total cost is represented by the equation .How many pounds of raisins did Priya buy if she bought the following amounts of almonds:2 pounds of almonds

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A.REI.3

A.CED.4

Priya is buying raisins and almonds to make trail mix. Almonds cost $5.20 per pound and raisins cost $2.75 per pound. Priya spent $11.70 buying almonds and raisins. The relationship between pounds of almonds a, pounds of raisins r, and the total cost is represented by the equation .How many pounds of raisins did Priya buy if she bought the following amounts of almonds:1.06 pounds of almonds

Tags

A.REI.3

A.CED.4

Priya is buying raisins and almonds to make trail mix. Almonds cost $5.20 per pound and raisins cost $2.75 per pound. Priya spent $11.70 buying almonds and raisins. The relationship between pounds of almonds a, pounds of raisins r, and the total cost is represented by the equation .How many pounds of raisins did Priya buy if she bought the following amounts of almonds:0.64 pounds of almonds

Tags

A.REI.3

A.CED.4

Here is a linear equation in two variables: 2x+4y-32=123.Solve the equation, first for x and then for y.

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A.REI.3

A.CED.4

A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per pound. The equation 0.9c+1.89r=17.01 represents the relationship between the quantities in this situation.Show that each of the following equations is equivalent to 0.9c+1.89r=17.01. Then, explain when it might be helpful to write the equation in these forms.c=18.9-21r

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A.REI.3

A.CED.4

A chef bought $17.01 worth of ribs and chicken. Ribs cost 1.89 per pound and chicken costs 0.90 per pound. The equation 0.9c+1.89r=17.01 represents the relationship between the quantities in this situation.Show that each of the following equations is equivalent to 0.9c+1.89r=17.01. Then, explain when it might be helpful to write the equation in these forms.r=-\frac{10}{21}c+9

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A.REI.3

A.CED.4

Bananas cost $0.50 each, and apples cost $1.00 each.Select all the combinations of bananas and apples that Elena could buy for exactly $3.50.

• 2 bananas and 2 apples
• 3 bananas and 2 apples
• 1 banana and 2 apples
• 1 banana and 3 apples
• 5 bananas and 2 apples

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A.REI.3

A.CED.4

Elena says that equations A and B are not equivalent.Equation A: 13-5x=48Equation B:5x = 35Write a convincing explanation as to why this is true.

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A.REI.3

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Select all the equations that are equivalent to the equation 3x-4=5.

• 3x=9
• 3x-4+4=5+4
• x-4=2
• x=9
• -4=5-3x

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A.REI.3

A.CED.4