unit fractions

A manufacturer found that there were 25 defective units out of the 180 sample units. Find the decimal number which is equivalent to the fraction of the defective units to the total number of sample units. => 0.33 or 0.17 or 0.23 or 0.13..

The circle graph represents the percentage of private schools in the United States, which collect annual tuition fee. Find the fraction of the schools with an annual tuition fee of $1501 to $2500. => 3 20 or 13 20 or 1 20 or 9 20..

The cells and their compounds like cell organelles are measured in terms of the fractions of a millimeter, because of their extremely small size. The commonly used terminologies for these units are micron, nanometer and Angstrom. a) A micron or micrometer is one thousandth of a..

The total school enrollment in the United States in the year 2001 was about 120 million. The total Secondary school enrollment is about 75 million. What fraction of the students are there in the Secondary school education? Write the fraction in simplest form using G.C...

When a solute is present in very small amounts, its concentration is expressed in parts per million. It is defined as the amount of the solute present in one million parts of the solution...

Whole numbers - read, write, count Place value (whole numbers) Decimals, fractions, percents; compose/decompose numbers Unit and same denominator fractions Equivalent fractions Negative numbers Positive numbers Addition and subtraction Factors and p..

Muscle is composed of a large number of muscle fibres. The muscle fibres are arranged in groups. Each group is under the control of a single motor neuron, the axon of which sends a terminal branch to each fibre of the group. All the muscle fibres of a group contract when a nerve impulse travels dow..

. We call it an equation of state even when we do not know the actual equation. Here's a simple (though approximate) equation of state for a solid material. The temperature coefficient of volume expansion b is the fractional volume change per unit temperature change, and the com..

A body that is a good radiator (or emitter) is also a good absorber. To understand this, suppose isotropic (i.e., equal in all directions) thermal radiation is incident on a body. Let a be the fraction of the total thermal radiation of all wavelengths absorbed by the body. The remaining h..

Solubility of a gas in a liquid increases with the increase in partial pressure of the gas above the solution. Quantitatively, this is governed by Henrys law, which states that at constant temperature. The mass of a gas dissolved in a given volume of the liquid is directly proportional to the pre..