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Chapter 7: Q3. (page 351)
Use a proportion to answer the question. What percent of 90 is 40?
The number 40 is of 90.
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Use a number line to order the numbers from least to greatest.
The composition of a U.S. dollar bill is cotton and linen. What percent of a dollar bill is cotton.
Write the percent as a fraction in simplest form, or write the fraction as a percent.
Alfalfa plant can take up metals from the ground and store them in their roots and stems. In 2002, a scientist claimed that an alfalfa plant could produce 20% of its weight in gold by taking up tiny gold particles left behind from rock mining. How many pounds of gold could be produced from 3000 ponds of alfalfa plants?
Write the percent as a fraction in simplest form, or write the fraction as a percent.
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