Mathematics Tutor: None Selected Time limit: 1 Day

Oct 11th, 2014

10.    rise = 800 m      run = 6 km = 6000 m

slope = 800/6000

slope = 8/60 = 0.133

= 13.3 %

11.(a)        grade = 52% means      rise = 52 m    run = 100 m

rise : run : : rise : run

52 m : 100 m : : rise : 243 m

52/100 = rise/243

rise = 243 * 52/100

rise = 126.4 m

12.       rise = 4 ft         run = 1 ft

If            rise = 26 ft   then    run = ?

rise : run : : rise : run

4 ft : 1 ft : : 26 ft : run

4/1 = 26/run

4 = 26/run

run = 26/4

run = 6.5 ft

13.         rise = 20 cm      run = 25 cm

If            rise = 3 m = 300 cm    then   run = ?

rise : run : : rise : run

20 cm : 25 cm : : 300 cm : run

20/25 = 300/run

0.8 = 300/run

run = 300/0.8

run = 375 cm

14.   (5,3)     and     (10,6)

slope = Y2 - Y1 / X2 - X1

= (6 - 3) / (10 - 5)

slope = 3 / 5

or

slope = 0.6

Oct 11th, 2014

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Oct 11th, 2014
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Oct 11th, 2014
May 26th, 2017
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