the cost of two books is $17.50. find the cost of each book. round to the nearest whole number.

The cost of two books is $17.50. Find the cost of each book. Round to the nearest whole number. => $7 or $8 or $10 or $9..

Introduction - We use specific number of digits to denote an exact value of a number for required accuracy. The digits used for such a purpose are called significant figures. Suppose a measurement is recorded as 0.6204 cm. It means that the measurement was made correct to the ..

The word 'Induction' means method of reasoning from individual cases to general ones or from observed instances to unobserved ones. Many important mathematical formulae are such that a result is formed by some means which does not provide for a direct proof. Mathematical Induction is a principle by..

Let us consider the following entries in a Students' Journal: (a) Weight of a calorimeter = 42 g (measuring instrument used is spring balance) The smallest reading the spring balance can record is 1g. There are 42 of 1 g units of measurement. Hence, there are two significant figures in th..

Let us consider the sales done by a school canteen for two successive days. Monday 25 cokes 12 cakes Tuesday 40 cokes 7 cakes Each coke costs $ 5 and cake costs $ 10. The sales can be expressed as a 2 x 2 matrix and the price as a 2 x 1 ma..

Matt bought a book for $33. Round the cost of the book to the nearest ten. => $35 or $20 or $40 or $30..

Nancy bought a bottle of nail polish for $2.27 and a book for $4.75. Estimate the total amount she spent. Round to the nearest whole number. => $6 or $5 or $8 or $7..

A library provides two types of cards for its members. A red card that costs $48 plus $4.25 rent per book and a yellow card costs $36 plus $5.75 rent per book. Find the number of books for which both cards would co..

A book costs more than 70 dollars and the cost is divisible by 3. What could be the cost of the book? => $84 or $83 or $66 or $85..

Irena paid $39 for three books. If the cost of one particular book is 20% of the total cost, then what would be the cost of the remaining two books? => $34.46 or $31.20 or $43.20 or None of the above..