Questions in mathematics

Questions in mathematics

[Jawaban] Solve the inequalities: \[ 8r - 5 > 6r - 1 \] or \[ 4 + 4r < 3r - 3 \]

[Jawaban] Solve for x: \[ 2x + 22 = 12 \]

[Jawaban] Tell whether the two ratios are proportional: \[ \frac{7}{11}, \frac{42}{60} \]

[Jawaban] Express 0.00247 in scientific notation.

[Jawaban] What is 15 and three fourths simplified as a fraction?

[Jawaban] Solve for [tex]c[/tex]: \[ k = c + 273.15 \]

[Jawaban] Draw a model to represent the ratio 1 to 3. Describe how to use the model to find an equivalent ratio. Additionally, provide a simple explanation of ratios for someone who was absent: A ratio is a relationship between two numbers showing how many times the first number contains the second. For example, in the ratio 1 to 3, for every 1 part of the first quantity, there are 3 parts of the second quantity. An equivalent ratio is one that expresses the same relationship, such as 2 to 6, which also represents a ratio of 1 to 3 when simplified.

[Jawaban] Arnold had $1.70 in dimes and quarters. He had 3 more dimes than quarters. How many of each coin did he have?

[Jawaban] What is the relationship between 3.0 and 0.3?

[Jawaban] What is \(0.06 \times 10^2\)?