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Questions in Grade Middle-school

[Answered] Explain the advantages of crystallization over evaporation.

[Answered] Please help propagate: 1. A stream 2. To support 3. A mockery 4. To flourish

[Answered] Jack had 50 sweets. He dropped 6, gave away 4, and cut 7 in half. How many sweets did he have left?

[Answered] Use the explicit formula [tex]a_n = a_1 + (n-1)d[/tex] to find the 500th term of the sequence below. 24, 31, 38, 45, 52, ...

[Answered] What will be the effect on the loudness of sound if the amplitude is doubled or halved?

[Answered] Exercise 1: If we multiply the numerator of a fraction by three and add 12 to the denominator, the value of the fraction becomes three-quarters. If the numerator is increased by 7 and the denominator is tripled, the value of the fraction changes. Find the fraction.

[Answered] How do you write [tex]7.8 \times 10^2[/tex] in standard form?

[Answered] How can the boiling point of a liquid be raised without adding a soluble impurity?

[Answered] Find the value of: \[ 27x^{3}+8y^{3} \] if \( 3x+2y = 20 \) and \( xy = \frac{14}{9} \).

[Answered] Two glasses together contain 280 mL of water. The first glass contains 80 mL more than the second glass. How much water does the first glass contain?