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Questions in Grade Middle-school

[Terjawab] Esme read 12 pages from her science book last night, and it took her 18 minutes. How long will it take her to read tonight's homework, which is 22 pages long? Explain and show your reasoning.

[Terjawab] How do you turn \(\frac{12}{15}\) and \(\frac{68}{80}\) into a decimal and into a percent?

[Terjawab] A car wash charges a flat rate for the first 8 minutes of washing time and a certain amount for each additional minute. Gina took 12 minutes to wash her car and it cost her a total of $5.00. Kris took 17 minutes to wash his truck at a total cost of $6.25. How much is the flat rate for the first 8 minutes? Show the equation used to find the answer.

[Terjawab] What is [tex]\frac{1}{5} - \frac{1}{7}[/tex]? Please explain how to work it out. Thank you.

[Terjawab] What is the value of x? \[ x + 5 = -6x - 16 \]

[Terjawab] The rate for one unit of a given quantity is called the unit rate.

[Terjawab] What is \( 9 \frac{3}{4} \) as a percent?

[Terjawab] Write 304,001 in word form. --- Three hundred four thousand one.

[Terjawab] How do you solve the expression [tex]x^5 \cdot 4[/tex]?

[Terjawab] Which sentence best describes the passage? Pick one of the bold sentences. Friction is a force that opposes the motion of an object. Friction occurs when a solid, liquid, or gaseous substance comes into contact with another substance. The result of friction is a force that opposes the motion of an object or substance. In other words, the motion of an object or substance slows down when there is friction. Friction converts kinetic energy (energy of motion) into heat. One type of friction is called rolling friction. Rolling friction is a restrictive force that slows the motion of a rolling ball. Rolling friction occurs when a round object rolls on a surface. This friction will cause the object to stop rolling eventually. The amount of friction produced depends on the material of the object and the makeup of the surface touching it. For example, a wooden bowling lane is oiled to reduce the amount of rolling friction that occurs when a bowling ball is thrown during a game. Otherwise, rolling friction might slow the ball enough to prevent it from knocking over any bowling pins.