1.3 RTI Check

• no solution

• exactly one solution

• more than two solutions

• infinitely many solutions

Tags

CCSS.8.EE.C.7A

Orange juice costs $5.20 per quart and pineapple juice costs $3.00 per quart. Maria wants to make a mixture of orange and pineapple juice that sells for $4.00 per quart. How many quarts q of orange juice should she mix with 5 quarts of pineapple juice to make the mixture at that price? Which equation below represents the situation?

Mathematical Equivalence

ON

Tags

CCSS.8.EE.C.7B

Which of the equations shown have infinitely many solutions? Select all that apply.

Tags

CCSS.8.EE.C.7A

Diego’s lawn-mowing service charges a flat rate of $15 per yard, plus $4 per hour of work. Malik does not charge a flat rate, but he charges $6 per hour of work. Write and solve an equation to find the number of hours h for which Diego and Malik would charge the same amount.

Equation: ​ ​ (a)   +​ ​ (b)   h = ​ ​ (c)   h

Solution: ​ ​ (d)   hours

• 15
• 4
• 6
• 7.5
• 10
• 5
• 6.5
• 4.5