Linear inequality in two variables

What type of line is used with the following symbols, < and >?

• dashed or dotted

• solid

Store A charges $10 plus $0.25 per letter for engraving. Store B charges $16 plus $0.15 per letter. Which inequality could be used to determine when Store B will cost less than Store A?

• 10 + 0.25x > 16 + 0.15x

• 10x + 0.25 > 16x + 0.15

• 10 + 0.25x < 16 + 0.15x

• 10x + 0.25 < 16x + 0.15

Lea needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes.

Which inequality below can be used to determine how many cars she has to wash to have enough money?

• 14x+30 ≥ 240

• 14x+30 ≤ 240

• 30x+14 ≥ 240

• 30x+14 ≤ 240

What type of line is used with the following symbols, < and >?

• dashed or dotted

• solid

Juan was given 20.00 pesos to buy chocolates (x) that cost 3 pesos each, and

candies (y) that cost 2 pesos each. Which of the following correctly represents this

situation?

• 3x + 2y ≥ 20

• 3x + 2y ≤ 20

• 3x + 2y > 20

• 3x + 2y < 20

The total amount of your electric (x) and water (y) bill is at most 3000 pesos.

Which of the following correctly represents this situation?

• x + y ≥ 3000

• x + y ≤ 3000

• x + y > 3000

• x + y < 3000

Select the solution of the inequality

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• 
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Which inequality matches the picture shown?

Which inequality matches the picture shown?

Aleris is sending a fancy organic fruit basket to her grandma for her birthday. Apples cost RM3 and oranges cost RM2. Aleris can spend no more than RM24 on the gift.

Write an inequality that describes the situation.

Let x = number of apples

Let y = number of oranges