Khan Academy Check #1

The latest online craze is a new game, Khan on Seven. You get 100 points for playing the game. In addition, you get 50 points for each seven-letter word you make with the ten letters you receive. Sal wants to break the record, and he needs 18,000 or more points to do so.

Write an inequality to determine the number of seven-letter words, w, Sal could make to break the record.

Mathematical Equivalence

ON

The dance committee of Pine Bluff Middle School earns $72 from a bake sale and will earn $4 for each ticket they sell to the Spring Fling dance. The dance will cost $400.

Solve the inequality to determine the number, of (t) tickets the committee could sell to have money left over after they pay for this year's dance.

Mathematical Equivalence

OFF

Sergi needs at least 175 kilograms of flour in total to complete the holiday orders he's received. He only has 34 kilograms of flour, so he needs to buy more.

The flour he likes comes in bags that each contain 23 kilograms of flour. He wants to buy the smallest number of bags as possible and get the amount of flour he needs.

Let Frepresent the number of bags of flour that Sergei buys.

1) Which inequality describes this scenario? ​ ​ (a)   ​ ​

2) What is the smallest number of bags that Sergei can buy to get the amount of flour he needs? ​ ​ (b)  

• 7
• 6
• 5
• 8

Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs $3.00. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most $40 before tax. The restaurant only sells pancakes in stacks of 4 pancakes for $6.50. Let S represent the number of stacks of pancakes that Benjamin buys.

1) Which inequality describes this scenario?​ ​ (a)  

2) ​ What is the largest number of pancakes that Benjamin can afford?​ (b)  

• 20
• 5
• 6
• 9
• 11
• 12

• (-3/5, 0)
• (3/5, 0)
• (10, 0)
• (6, 0)
• (0, 6)
• (0, 6/10)
• (0, 10)

• (-3/2, 0)
• (0, -4)
• (0, 4) 
• (0, 8)
• (8, 0)
• (3/2, 0)
• (-12, 0)

Identify the x and y intercepts:

• (2, -3)

• (0, 2)

• (-3, 0)

• (0, -3)

• (2, 0)

Identify the y-intercept of the function.

Identify the x-intercept of the function:

• (8, 60)

• (-12, 0)

• (0, 15)

• (0, -12)

• (-7, 0)