Elementary AlgebraAmerican book Company, 1917 - 503 páginas |
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Página 11
... dollars one man has . Hence 2x + 2 = the number of dollars the other has , and x + 2x + 2 = the number of dollars both have . Then x + 2x + 2 = 68 . or 3x + 2 = 68 . ( By the conditions of the problem . ) ( Why ? ) ... 3 x = 66 . ( Why ...
... dollars one man has . Hence 2x + 2 = the number of dollars the other has , and x + 2x + 2 = the number of dollars both have . Then x + 2x + 2 = 68 . or 3x + 2 = 68 . ( By the conditions of the problem . ) ( Why ? ) ... 3 x = 66 . ( Why ...
Página 13
... dollars profit the first year . x = number of dollars profit the second year . Then x + x + Hence x + x = or 7623 , x = 7623. ( Why ? ) . ' . x = 3388 , the number of dollars profit the first year . 26. A workman's weekly expenses are ...
... dollars profit the first year . x = number of dollars profit the second year . Then x + x + Hence x + x = or 7623 , x = 7623. ( Why ? ) . ' . x = 3388 , the number of dollars profit the first year . 26. A workman's weekly expenses are ...
Página 48
... dollars at first . 39. At a certain election A received 113 more votes than B. The number of votes cast for both was 847. How many votes did each receive ? SUGGESTION . Let x Hence x + 113 : - number of votes B received . number of ...
... dollars at first . 39. At a certain election A received 113 more votes than B. The number of votes cast for both was 847. How many votes did each receive ? SUGGESTION . Let x Hence x + 113 : - number of votes B received . number of ...
Página 57
... dollars . How much was it 5 ago if it has been increased b dollars each year ? years 41. A machine cuts pieces 3 inches long from a rod 10 feet long . How much is left after a cuts ? 42. If an automobile is worth m dollars and ...
... dollars . How much was it 5 ago if it has been increased b dollars each year ? years 41. A machine cuts pieces 3 inches long from a rod 10 feet long . How much is left after a cuts ? 42. If an automobile is worth m dollars and ...
Página 66
... dollars does each man get ? SUGGESTION . Let x = the number of dollars the first receives . Hence x 25 - and x + 25 Then x + ( x - = - the number of dollars the second receives , the number of dollars the third receives . 25 ) + ( x + ...
... dollars does each man get ? SUGGESTION . Let x = the number of dollars the first receives . Hence x 25 - and x + 25 Then x + ( x - = - the number of dollars the second receives , the number of dollars the third receives . 25 ) + ( x + ...
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Términos y frases comunes
a²b a²b² a²x² ab² added algebraic expression arithmetical arithmetical means ax² binomial CHECK common factor completing the square decimal places degree denominator difference divided dividend division equa equal example Factor the following feet figures Find the numbers Find the square Find the value following equations formula graph HINT indicated integral Let the student logarithm mantissa miles an hour minuend monomial Multiply negative numbers number of dollars ORAL EXERCISE p-form parenthesis polynomial problem proportion quadratic equation quotient radicand rational rectangle remainder result rule sides signed numbers Simplify SOLUTION Solve the following square inches square root Substituting Subtract tion triangle trinomial type form unknown number Va² write x²y x²y² zero
Pasajes populares
Página 225 - If the product of two numbers is equal to the product of two other numbers, either two may be made the means, and the other two the extremes of a proportion.
Página 281 - Then divide the first term of the remainder by the first term of the divisor...
Página 222 - In any proportion, the product of the means is equal to the product of the extremes.
Página 231 - In a series of equal ratios, the sum of the antecedents is to the sum of the consequents as any antecedent is to its consequent.
Página 226 - If four quantities are in proportion, they are in proportion by inversion; that is, the second term is to the first as the fourth is to the third.
Página 454 - The logarithm of a number is the exponent of the power to which a fixed number, called the base, must be raised in order to produce the given number.
Página 97 - To divide a polynomial by a monomial, divide each term of the polynomial by the monomial: (Sab — 12ac) -i- 4a = 36 — 3c.
Página 226 - In any proportion the terms are in proportion by Alternation ; that is, the first term is to the third as the second term is to the fourth.
Página 457 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 83 - The product of two binomials having a common term equals the square of the common term plus the product of the common term by the sum of the other terms, plus the product of the other terms.