Questions in mathematics

Questions in mathematics

[Jawaban] Sixteen is divided by the sum of a number \( Q \) and 1. The result is four. What is the number?

[Jawaban] Sam's laptop has a mass of 4.2 kg. Fred's laptop has a mass of 4940 grams. Which computer has less mass? Explain your answer.

[Jawaban] Suppose [tex]a[/tex] and [tex]b[/tex] are real numbers where [tex]a > 0[/tex] and [tex]b < 0[/tex]. a. Is [tex]-a + b[/tex] positive or negative? Explain how you know. b. Is [tex]a - b[/tex] positive or negative? Explain how you know. c. Is [tex]b - a[/tex] positive or negative? Explain how you know.

[Jawaban] Moses and Leillah are still playing the game "Guess My Numbers." It is Leillah's turn. Leillah: I am thinking of two numbers. Their greatest common factor is 3, and their least common multiple is 90. Moses: There are exactly three possible pairs of numbers that you could be thinking of. Is Moses right? If you agree with Moses, explain how you know that there are exactly three possible pairs of numbers. If you disagree, find all possible pairs of numbers that Leillah might be thinking of.

[Jawaban] What are \(\frac{7}{15}\) and \(\frac{5}{14}\) written as decimals?

[Jawaban] Use the distributive property and common factors to write an expression equivalent to \(15 + 35\).

[Jawaban] Is [tex]y = 5x[/tex] proportional or non-proportional?

[Jawaban] Is [tex]y = 9x + 3[/tex] proportional or non-proportional, and why?

[Jawaban] How do you divide 1.29 by 6?

[Jawaban] Janelle has $75. She buys jeans that are on sale for half price and then uses an in-store coupon for $10 off. After paying $1.80 in sales tax, she receives $37.20 in change. What was the original price of the jeans?