Junior High School Mathematics: First [-third] Course, Βιβλίο 1Macmillan, 1917 |
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Σελίδα 37
... hence 8 is of 12 . That is , 8 has the same relation to 12 as 2 has to 3 . NOTE . This comparison of 8 to 12 or relation of 8 to 12 , expressed by the fraction , is called a ratio . 3. Compare 12 with 8 . Here the comparison is ...
... hence 8 is of 12 . That is , 8 has the same relation to 12 as 2 has to 3 . NOTE . This comparison of 8 to 12 or relation of 8 to 12 , expressed by the fraction , is called a ratio . 3. Compare 12 with 8 . Here the comparison is ...
Σελίδα 38
... Hence CHECK . 6n or n . 12 23 or 4 . + 218 n = 4 . - 416 3 Ans . The number = 4 . 8. The length of a room is 16 ft . The ratio of the width to the length is equal to 2. Find the width of the room . SOLUTION . Let w = width of room ...
... Hence CHECK . 6n or n . 12 23 or 4 . + 218 n = 4 . - 416 3 Ans . The number = 4 . 8. The length of a room is 16 ft . The ratio of the width to the length is equal to 2. Find the width of the room . SOLUTION . Let w = width of room ...
Σελίδα 39
... Hence CHECK . 48 or 12 . 4 w = 12 3 - 12 . 16 4 Ans . The width is 12 ft . 9. What number has the same ratio to 25 that 16 has to 100 ? SOLUTION . Let n = the number , then n 25 = 16 100 Multiplying each member by 100 , Hence CHECK . 4 ...
... Hence CHECK . 48 or 12 . 4 w = 12 3 - 12 . 16 4 Ans . The width is 12 ft . 9. What number has the same ratio to 25 that 16 has to 100 ? SOLUTION . Let n = the number , then n 25 = 16 100 Multiplying each member by 100 , Hence CHECK . 4 ...
Σελίδα 47
... ・ an inch . Find the ratio FIG . 2 B -D of the two lines . Their lengths are 1.2 in . , and 1.8 in . , hence their ratio is 1.2 12 or 1.8 ' 18 210 Meas- Find their 10. Draw two straight lines of different III , § 28 ] 47 MEASUREMENT.
... ・ an inch . Find the ratio FIG . 2 B -D of the two lines . Their lengths are 1.2 in . , and 1.8 in . , hence their ratio is 1.2 12 or 1.8 ' 18 210 Meas- Find their 10. Draw two straight lines of different III , § 28 ] 47 MEASUREMENT.
Σελίδα 54
... hence 2.4 " will represent 12 ' ( since 12 contains 5 , 2.4 times ) . 12. Draw to the scale of 10 ' to 1 " a square having each side equal to 18 ' . 13. A square room is 17 ' on each side . Draw a plan of it to the scale of 10 ' to 1 ...
... hence 2.4 " will represent 12 ' ( since 12 contains 5 , 2.4 times ) . 12. Draw to the scale of 10 ' to 1 " a square having each side equal to 18 ' . 13. A square room is 17 ' on each side . Draw a plan of it to the scale of 10 ' to 1 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
acre of potatoes ALLEN HOPKINS amount automobile b₁ b₂ baseball Brown oak bushels cent of increase circle circular graph circumference column decimal fraction decimal point discount Dividing each member Draw the parallelogram Estimate EXAMPLE express Find its area Find the area Find the cost Find the distance Find the number Find the ratio Find the sum Find the total floor area following table formula height or altitude hundred include an angle line-graphs lot of land Mahogany marked price method miles per hour Multiplying each member nearest hundredth nearest tenth nearest thousandth number of square number value Overcoat partial product pounds protractor pupils put check rectangle rectangular graphs ruler scale of 100 Sideboard sold SOLUTION Solve the equation square feet square foot square inches square mile square yard straight line supplementary angles trapezoid triangle WILLIAM GENTLEMAN words write zoid ཋནཉྩ
Δημοφιλή αποσπάσματα
Σελίδα 142 - Time 60 seconds (sec.) = 1 minute (min.) 60 minutes = 1 hour (hr.) 24 hours = 1 day (da.) 7 days = 1 week (wk.) 365 days = 1 common year (yr.) 366 days = 1 leap year 12 months (mo.) = 1 year 10 years = 1 decade 10 decades or \ , , , „ , 1=1 century (cen. or U.) 100 years / J v ' Thirty days has September, April, June, and November; All the rest have thirty-one, Excepting February alone, To which we twenty-eight assign, Till leap year gives it twenty-nine.
Σελίδα 91 - SQUARE MEASURE 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet — 1 square yard (sq. yd.) 30^ square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq.
Σελίδα 141 - CUBIC MEASURE 1728 cubic inches (cu. in.) = 1 cubic foot (cu. ft.) 27 cubic feet = 1 cubic yard (cu. yd.) 128 cubic feet = 1 cord (cd...
Σελίδα 46 - LINEAR MEASURE 12 inches (in.) = 1 foot (ft.) 3 feet = 1 yard (yd.) 5£ yards, or 16| feet = 1 rod (rd.) 320 rods . = 1 mile (mi.) 1 mi.
Σελίδα 141 - Square Measure 144 square inches (sq. in.) = 1 square foot (sq. ft.) 9 square feet = 1 square yard (sq. yd.) 30| square yards = 1 square rod (sq. rd.) 160 square rods = 1 acre (A.) 640 acres = 1 square mile (sq. mi.) Cubic Measure 1728 cubic inches (cu.
Σελίδα 117 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the center.
Σελίδα 18 - Count the total number of digits to the right of the decimal points in the numbers you are multiplying.
Σελίδα 117 - The diameter of a circle is a straight line drawn through the center and terminated by the circumference.
Σελίδα 142 - ANGULAR MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 360 degrees = 1 circumference.