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Questions in Grade Middle-school

[Terjawab] Allison buys 25 roses and some tulips. She loses 4 flowers on her way home. At home, she counts 30 flowers. How many tulips did she buy?

[Terjawab] The African bush elephant weighs between 4.4 tons and 7.7 tons. What are its least and greatest weights, rounded to the nearest ton?

[Terjawab] What is the answer and the work for the expression \(10 + 3(2v - 3)\)?

[Terjawab] What is the perimeter of a rectangle whose length is 2 m 10 cm and width is 45 cm?

[Terjawab] Carrie and Krystal are taking a road trip from Greenville to North Valley. Each person has her own map, and the scales on the maps are different. a. On Carrie's map, Greenville and North Valley are 4.5 inches apart. The scale on her map is 1 inch = 20 miles. b. The scale on Krystal's map is 1 inch = 18 miles. How far apart are Greenville and North Valley on Krystal's map?

[Terjawab] A triangular flower bed needs a thin metal border all the way around it. The sides are 7 feet, 6 feet, and 9 feet long. 1. How many feet of border should be purchased? 2. If borders cost $8.75 per yard (and only whole numbers of yards can be purchased), how much would the border cost?

[Terjawab] What are three equivalent fractions to \(\frac{75}{100}\)?

[Terjawab] Justify why \(\frac{a}{b} \times \frac{b}{c} \times \frac{c}{d} \times \frac{d}{e}\) is equal to \(\frac{a}{e}\) when \(b\), \(c\), \(d\), and \(e\) are not zero.

[Terjawab] The scale of the map is missing. The actual distance from Liberty to West Quall is 72 miles, and it is 7 inches on the map. a. What is the scale of the map? b. Foston is between Liberty and West Quall and is 4 inches from Liberty on the map. How far is Foston from West Quall?

[Terjawab] Why is honesty especially important in a scientist when the results of an experiment go against predictions?