Bosco

How can you find the area of a sqare without any labels or numbers telling the lenghth     

If you know the length of its diagonal, you can divide it by sqrt(2) to obtain the length of a side.     

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                                                                 y₂ – y₁     

Actually, the slope formula is         m  =  ––––––––     

                                                                 x₂ – x₁     

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   Tom's Diner had 10 entrees on the menu.     

   The prices were: $5.00 $5.00 $5.00 $7.00 $6.00 $9.00 $8.00 $9.00 $8.00 $8.00     

   What was the mean entree price      

   $5.00 + $5.00 + $5.00 + $7.00 + $6.00 + $9.00 + $8.00 + $9.00 + $8.00 + $8.00  =  $70.00     

   $70.00 / 10  =  $7.00     

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mya takes a dive from the springboard at a swimming pool. the board is 3 1/2 feet above the surface of the water.     

The total length of her dive is 8 3.4 feet. how far below the surface of the water is mya at the end of the dive?     

Total dive  =  Distance above the water  +  Distance below the water     

8 ³/₄ ft  =  3 ¹/₂ ft  +  D_belowwater     

D_belowwater  =  8 ³/₄ ft  –  3 ¹/₂ ft     

D_belowwater  =  5 ¹/₄ ft     

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A jet climbs at a steady rate at an angle of 0.5 during take-off.     

What will its height be after a 2.2-km initial ascent at this angle?      

Is the 2.2 km (1) the air distance of the path the plane flew,     

           or is it (2) the ground distance below the plane's path?     

(1)    h / 2.2  =  sin(0.5^o)     

        h / 2.2  =  0.008726535     

                h  =  (2.2)(0.008726535)     

                h  =  0.019198378 km     

(2)    h / 2.2  =  tan(0.5^o)     

        h / 2.2  =  0.008726867     

                h  =  (2.2)(0.008726867)     

                h  =  0.019199109 km     

                height rounds to 19.2 meters either way     

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Kim made soup which contains 75 total ounces of beans. The soup has 2 kinds of beans, black and red. There are 4 times as many ounces of black beans as red beans. How many ounces of red beans are in the soup?     

   RB + BB  =  75     

            BB  =  4 • RB     

   RB + BB  =  75     

   RB + 4RB  =  75     

            5RB  =  75     

              RB  =  15     

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