WISE Content Areas Flashcards

Question: Solve for x: 2𝑥+5=15.

Answer: x=5

To solve the equation 2x + 5 = 15, first subtract 5 from both sides, which gives 2x = 10. Then, divide both sides by 2 to isolate x. This results in x = 5, making it the correct solution.

What is the primary function of the mitochondria in a cell?

Answer: To produce energy

Mitochondria are often referred to as the 'powerhouses' of the cell because their primary function is cellular respiration. During this process, they convert nutrients into adenosine triphosphate (ATP), which is the main energy currency of the cell. This ATP powers various cellular activities, making energy production their most vital role.

Based on the sentence, “The forest echoed with the cries of nocturnal creatures,” what does nocturnal mean?

Answer: Active at night

The sentence describes the forest echoing with cries of 'nocturnal creatures.' The context implies these creatures are active when the forest is typically dark and quiet, which is at night. Therefore, 'nocturnal' specifically refers to animals that are active during the night and sleep during the day.

If all cats are mammals, and some mammals are black, what can we conclude?

Answer: Some mammals are cats.

The premise states 'all cats are mammals.' This means that the set of all cats is a subset of the set of all mammals. Therefore, if something is a cat, it must also be a mammal, which directly implies that some members of the mammal group are specifically cats. The other options cannot be concluded with certainty from the given statements.

A jacket originally costs $120 but is on sale for 25% off. What is the sale price?

Answer: $90

To find the sale price, first calculate the discount amount. 25% of $120 is (0.25 * 120) = $30. Then, subtract the discount from the original price: $120 - $30 = $90. Therefore, the jacket's sale price is $90.