Elementary Algebra RevisedAmerican book Company, 1913 - 447 páginas |
Dentro del libro
Resultados 1-5 de 23
Página 74
... smaller number is n . What is the larger number ? 16. The sum of three numbers is 50 ; one is x , and another 35. What is the expression for the third number ? 17. Name three consecutive numbers , the least of the three being n . 18 ...
... smaller number is n . What is the larger number ? 16. The sum of three numbers is 50 ; one is x , and another 35. What is the expression for the third number ? 17. Name three consecutive numbers , the least of the three being n . 18 ...
Página 76
... : 1. The greater of two numbers is 3 more than the less , and four times the less number exceeds twice the greater number by 8 . Find the two numbers . Let Then x = the smaller number . x + 76 THE LINEAR EQUATION . THE PROBLEM.
... : 1. The greater of two numbers is 3 more than the less , and four times the less number exceeds twice the greater number by 8 . Find the two numbers . Let Then x = the smaller number . x + 76 THE LINEAR EQUATION . THE PROBLEM.
Página 77
... smaller number . Consequently , adding 3 , x + 3 = 10 , the larger number . The results verify in the original condition , hence in the equation . 2. Find the number which , multiplied by 4 , exceeds 40 by as much as the number itself ...
... smaller number . Consequently , adding 3 , x + 3 = 10 , the larger number . The results verify in the original condition , hence in the equation . 2. Find the number which , multiplied by 4 , exceeds 40 by as much as the number itself ...
Página 79
... smaller number . Find the numbers . x = the smaller number . Let Then 24 x = the larger number . Now " the greater number is 3 more than twice the smaller , " Hence , Solving , Whence , Verification : 24 x 3 + 2x . - x = 7 , the smaller ...
... smaller number . Find the numbers . x = the smaller number . Let Then 24 x = the larger number . Now " the greater number is 3 more than twice the smaller , " Hence , Solving , Whence , Verification : 24 x 3 + 2x . - x = 7 , the smaller ...
Página 80
... smaller part plus four times the larger part shall be 50 . ( HINT : Let x the smaller part ; 17 - x = the larger part . ) 21. Divide 64 into two parts such that three times the smaller part added to twice the larger part shall be 158 ...
... smaller part plus four times the larger part shall be 50 . ( HINT : Let x the smaller part ; 17 - x = the larger part . ) 21. Divide 64 into two parts such that three times the smaller part added to twice the larger part shall be 158 ...
Otras ediciones - Ver todas
Términos y frases comunes
a²x a²x² a³b algebraic expression arithmetical arithmetical progression ax² binomial cents coefficient consecutive numbers consecutive odd numbers cube decimal difference digits Divide dividend division divisor dollars Exercise exponent feet Find the number Find the sum Find the value formula fraction geometrical progression given equation Hence highest common factor inclosed indicated integral LINEAR EQUATIONS logarithm m²n² m³n mantissa minuend monomial multiplicand Multiply negative number number of terms numbers whose sum Numerical Illustration obtained Oral Drill parenthesis polynomial present age principle quadratic equation quadratic surd quotient radical radicand ratio remainder required number Result second term Simplify smaller number solution square root Substituting Subtract surd three consecutive twice unknown quantity Whence x²y
Pasajes populares
Página 57 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Página 9 - The area of a rectangle is equal to the product of its base and altitude. Given R a rectangle with base b and altitude a. To prove R = a X b. Proof. Let U be the unit of surface. .R axb U' Then 1x1 But - is the area of R.
Página 375 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 337 - The pressure of wind on a plane surface varies jointly as the area of the surface, and the square of the wind's velocity. The pressure on a square foot is 1 Ib.
Página 320 - If the product of two numbers is equal to the product of two others, one pair may be made the extremes, and the other pair the means, of a proportion. Given ad = be. (1) To Prove - = -. bd Proof. Dividing both members of (1) by bd, ad_bc_ £_£ bd~bd' b~d' In like manner, we may prove - = - ; - = - ; etc.
Página 375 - The logarithm of a quotient is equal to the logarithm of the dividend minus the logarithm of the divisor.
Página 158 - At what time between 4 and 5 o'clock are the hands of a clock exactly opposite each other ? 7.
Página 323 - In any proportion, the product of the means equals the product of the extremes.
Página 89 - ... the square of the second. _ Again, (a — by = (a — 5) (a — 5) = a2 — 2a6 + 52. (2) That is, The square of the difference of two quantities is equal to the square of the first, minus twice the product of the first by the second, plus the square of the second.
Página 369 - The foregoing method is based on the assumption that the differences of logarithms are proportional to the differences of their corresponding numbers, which, though not strictly accurate, is sufficiently exact for practical purposes.