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Do Now: “Cracking the Code” (TFK 10/2014) “…only one out of 10 schools in the U.S. offers computer-science classes.” 1.) Write this as a ratio. 2.) If.

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Presentation on theme: "Do Now: “Cracking the Code” (TFK 10/2014) “…only one out of 10 schools in the U.S. offers computer-science classes.” 1.) Write this as a ratio. 2.) If."— Presentation transcript:

1 Do Now: “Cracking the Code” (TFK 10/2014) “…only one out of 10 schools in the U.S. offers computer-science classes.” 1.) Write this as a ratio. 2.) If there are about 60 colleges in NJ, how many offer these classes using this ratio? “…by 2020, U.S. universities will not be ale to fill a third of the country’s 1.4 million computing jobs.” 3.) Write a third as a fraction. 4.) Write 1.4 million in standard form. 5.) Write a multiplication problem to find how many jobs will not be filled in 2020. 1/10 6 colleges 1/3 1,400,000 1/3 (1.4)

2 Flashback… Find the GCF of 32 and 52. Find the LCM of 9 and 6 4 18

3 Ch. 4 Fractions, Decimals, and Percents

4 11/10/2014 4-1 A Decimals as Fractions

5 rational number- any number that can be written as a fraction

6 Method- to write a decimal as a fraction or mixed number 1.) say the number properly 2.) simplify by the GCF

7 Common decimal  fraction.1.2⅕.25¼.5½.75¾

8 Write 0.4 as a fraction in simplest form. Example 1.4 = ⅖

9 Example 2 Write 0.38 as a fraction in simplest form. 19 50

10 Example 3 Write 0.264 as a fraction in simplest form. Simplify. 33 125

11 Example 4 The average length of a scallop shell is 2.75 inches. Express this amount as a mixed number in simplest form. 2 ¾ in.

12 Write each decimal as a fraction or mixed number Helpful hint: read the decimal properly! 5) 0.6246) 3.42

13 Example 7 If one person earned 1.75% on an investment and another earned 2.15%, find the total of their earnings. Write the amount as a mixed number in simplest form.

14 Exit Ticket Data taken from ONJSC at Rutgers University “Historical Monthly Station Data”

15 New Jersey’s levels of precipitation for the last three months are listed above (in inches). 1)Write each month as fraction or mixed number in simplest form 2)Find the difference of rainfall in August & September. Write the amount as a mixed number in simplest form. 3)Find the total of precipitation for the last 3 months. Write the amount as a mixed number in simplest form. August 4.4September 2.76October 4.13 1 16/25 in Aug.= 4 2/5 in Sept. = 2 19/25 in Oct.= 4 13/100 in 11 29/100 in

16 Homework Pg. 202 #1-34 Evens Ch. 4 Quiz I Thursday Wear red, white, and blue tomorrow!

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