Lesson 14 Refine Practice

Dawn is ordering 1 veggie sandwich for every 3 ham sandwiches. She needs 12 sandwiches in all. Veggie sandwiches cost $4.00 each and ham sandwiches cost 4.50 each. How much will Dawn spend on sandwiches?

• $48.00

• $50.00

• $52.50

• $54.00

In science class, students mix water and a citric acid solution. The table shows how much water and citric acid solution two students use. Whose mixture is more acidic? Show your work.

• Bao's mixture is more acidic.

• Moses's mixture is more acidic.

• Both mixtures are equally acidic.

Amata mixes 2 parts black paint with 3 parts white paint to make 90 mL of gray paint. How much white paint does Amata use to make the gray paint?

• 18 mL

• 30 mL

• 45 mL

• 54 mL

Jose chose A as the correct answer on #3. How might have he gotten that answer?

The graph shows the ratio of goals attempted to goals made for two soccer players, Andres and Deyvi. Which player has a better record of making goals? Make a table to help you solve.

• Andres

• Deyvi

Kwame and his sister Olivia each combine orange juice and mango juice. Kwame makes a total of 12 cups of orange-mango juice, and Olivia makes a total of 20 cups. Kwame uses less orange juice than Olivia, but his orange-mango juice tastes more like oranges than hers does. Give an example of the number of cups each ingredient each person could have used. Explain your thinking.

There are 44 seats on a city bus. The ratio of standard seats to priority seats is 10 : 1. One more priority seat is installed on the bus. What is the new ratio of standard seats to priority seats on the bus?

• 8 : 1

• 5 : 1

• 11 : 1

• 13 :1

A box holds red pens and blue pens. The ratio of red pens to blue pens is 1 to 4. The box holds 12 more blue pens than red pens. What is the total number of pens in the box?

• 20

• 24

• 30

• 36

Lulu and Cece collect shells at the beach. They collect a total of 35 shells. At first, the ratio of Lulu’s shells to Cece’s shells is 5 : 2. Then Lulu gives 5 of her shells to Cece. Tell whether each statement is True or False.

Groups:

(a) True Statements

,

(b) False Statements

• After Lulu gives CeCe 5 shells, the ratio of Lulu's shells to CeCe's shells is 5:3.

• After Lulu give CeCe 5 shells, CeCe has 15 shells.

• At first, Lulu has 25 shells.

In cooking class, Lupita and Jacob each make a mixture of basil and oregano. Lupita uses 2 tsp basil for every 3 tsp oregano. Jacob uses 4 tsp basil for every 5 tsp oregano. Lupita says the two mixtures will taste the same. Jacob says his mixture will have a stronger basil taste than Lupita’s. Who is correct?