Elements of AlgebraGinn & Heath, 1881 - 380 páginas |
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Página 142
... miles at the rate of 4 miles an hour , 40 4 = number of hours required . Ex . A courier who goes at the rate of 31 miles in 5 hours , is followed , after 8 hours , by ... miles . Since the second goes 224 miles in 3 hours , 142 ALGEBRA .
... miles at the rate of 4 miles an hour , 40 4 = number of hours required . Ex . A courier who goes at the rate of 31 miles in 5 hours , is followed , after 8 hours , by ... miles . Since the second goes 224 miles in 3 hours , 142 ALGEBRA .
Página 143
... miles the first travels ; ( x8 ) 7 the number of miles the second travels . = They both travel the same distance , .. 6+ x = = ( x — 8 ) 71 . - The solution of which gives 42 hours . 40. A sets out and travels at the rate of 7 miles in ...
... miles the first travels ; ( x8 ) 7 the number of miles the second travels . = They both travel the same distance , .. 6+ x = = ( x — 8 ) 71 . - The solution of which gives 42 hours . 40. A sets out and travels at the rate of 7 miles in ...
Página 144
... miles an hour takes 2 hours less than one travelling 25 miles an hour . Determine the distance . NOTE V. In problems relating to clocks , it is to be observed that the minute - hand moves twelve times as fast as the hour - hand . Ex ...
... miles an hour takes 2 hours less than one travelling 25 miles an hour . Determine the distance . NOTE V. In problems relating to clocks , it is to be observed that the minute - hand moves twelve times as fast as the hour - hand . Ex ...
Página 150
... miles an hour ; 20 minutes later another person starts from Q and walks towards P at the rate of 4 miles an hour . The distance from P to Q is 20 miles . How far from P will they meet ? 75. A person engaged to work a days on these ...
... miles an hour ; 20 minutes later another person starts from Q and walks towards P at the rate of 4 miles an hour . The distance from P to Q is 20 miles . How far from P will they meet ? 75. A person engaged to work a days on these ...
Página 171
... miles an hour in still water , and if it be on a stream that runs at the rate of y miles an hour , then x + y represents its rate down the stream , x - y represents its rate up the stream . 27. A waterman rows 30 miles and back in 12 ...
... miles an hour in still water , and if it be on a stream that runs at the rate of y miles an hour , then x + y represents its rate down the stream , x - y represents its rate up the stream . 27. A waterman rows 30 miles and back in 12 ...
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Términos y frases comunes
A's chance a+b+c ab² ab³ algebraic arithmetical arithmetical mean arithmetical series arranged binomial black balls cent chance of drawing coefficient cologarithm common factor Complete the square consonants contains cube root denominator denote digits divided divisor dollars equal event EXERCISE exponent expression Extract the root feet Find the H. C. F. Find the number fraction geometrical given greater harmonical series Hence highest common factor hour integral letters logarithm mantissa miles monomial Multiply negative number number of terms obtained polynomial positive pounds quadratic quotient ratio remainder represent Resolve into factors result second term selected side Simplify square root Subtract surd taken unknown quantities vowels white ball whole number wins x²y² yards
Pasajes populares
Página 56 - Any term may be transposed from one side of an equation to the other provided its sign be changed.
Página 192 - It will be seen that this third term is the square of the quotient obtained from dividing the second term by twice the square root of the first term. 282. Every affected quadratic may be made to assume the form of aV ± 2 abx = c. To solve such an equation : The first step is to complete the square...
Página 45 - 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.
Página 150 - Find the value of one of the unknown quantities, in terms of the other and known quantities...
Página 259 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Página 164 - There is a number consisting of two digits, the second of which is greater than the first, and if the number be divided by the sum of its digits, the quotient is 4...
Página 26 - The number thus added to itself, or the number to be multiplied, is called the multiplicand. The number which shows how many times the multiplicand is to be taken, or the number by which we multiply, is called the multiplier.
Página 135 - A and B together can do a piece of work in 12 days, which B and C together can do in 16 days. After 'A' has been working at it for 5 days and B for 7 days, C finishes it in 13 days.
Página 4 - Find two numbers such that when the greater is divided by the less the quotient is 4 and the remainder 3, and when the sum of the two numbers is increased by 38 and the •result divided by the greater of the two numbers the quotient is 2 and the remainder 2.
Página 292 - Find the thickness of the metal, it being known that the volume of a sphere varies as the cube of its diameter.