 | James Hamblin Smith - Algebra - 1879 - 144 pages
...— —г, = -j — -= . 6 d c'-3cd+4d? fd? 2. Find the fourth root of 3. Find the cube root of 4. A boat goes up stream 30 miles and down stream 44...and down stream 55 miles in 13 hours. Find the rates of the stream and the boat. .,6. Find the L.о.M. of 5a? + 19ж-4 and 10aР+ 13a:-3. EXERCISE— XXVIII.... | |
 | University of Calcutta - 1881 - 556 pages
...2САД + iД. 3 12. A hoat goes up stream 30 miles and down stream 44 miles 4 in 10 honrs : it also goes up stream 40 miles and down stream 55 miles in 13 honrs. Find the rate of the stream and of the hoat. GEOMETRY AND MENSURATION— AFFERNOON. ,> . (ME.... | |
 | 1908 - 332 pages
...between the fifth and sixth parts of a certain number is 40 less than the number. Find the number. 8. A boat goes up stream 30 miles and down stream 44 miles in 10 hours. Again it goes 40 miles up stream and 55 miles down in 13 hours. Find the rates of the boat in still water and the... | |
 | Oswald Tower - Algebra - 1922 - 196 pages
...110, and the 4% bonds at 120, the amount realized is $3140. How much is invested in each kind of bond? 30. A boat goes up stream 30 miles and down stream...the rates per hour of the stream and of the boat. Linear Equations Containing Three or More Unknown Quantities 43. Numerical and literal equations. Solve... | |
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A boat goes up stream 30 miles and down stream 44 miles in 10 hours. Again it goes up stream 40 miles and down stream 55 miles in 13 hours. Find the rates per hour of the stream and of the boat. 