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Showing posts with label Alyssa817. Show all posts
Showing posts with label Alyssa817. Show all posts

Tuesday, February 14, 2012

Alyssa's Pythagorean Relationship Post

1. Explain the pythagorean relationship.

Pythagorean Relationship: a2 + b2 = c2

a2 - is one of the legsc2 - is the hypotenuse of a right triangle

2. Answer the missing side.
one leg equals = 12 which is A side
the other = 5
so we go c=a+b
c2=12+5
c2= (12x12) + (5x5)
c2= 144+25
c2=169( sqaure root it )
c=13
so the answer will be the c= 13 2

3.is the triangle a right triangle? prove it !!!
a or b = 8 

the other side (a or b) = 6
a2+b2=c2
8+6=14
14(2)=11(2)

the triangle is not a right triangle
b2 - is also one of the legs

Wednesday, October 19, 2011

Alyssa's Proportion Post


Ratio: A RATIO is a statement of how two numbers compare. It is a comparison of the size of one number to the size of another number. 
Rate: A RATE is a ratio that expresses how long it takes to do something, such as traveling a certain distance

ProPorTion: A PROPORTION is an equation with a ratio on each side. It is a statement that two ratios are equal.

Proportion Statement:

5 hours to travel 360 miles is about _____mph

                         divided by 1
Hours        5                           1
______   ____________ = _____________
Miles        360                        1
                        divided by 1

As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.

    divided by 4
  25                 100
______   =   ________
  50                12.5
    divided by 4

It is fair, because the hobo could have got more criminal records than that, and the rich man probably didnt have that much criminal records, and so its based on how much crimes was made.