Solution

Answer:

__Mean, Median, Mode__

1. Find the mean, median, and the mode: 8, 7, 9, 2, 1, 1, 3, 4

Numerical Order - **1, 1, 2, 3, 4, 7, 8, 9**

Mean - 1 + 1 + 2 + 3 + 4 + 7 + 8 + 9 = 31/8 31/8 = 3.875

Median - 1, 1, 2, **3, 4**, 7, 8, 9 - 3, 4 are in the middle - add them together - divide by 2

Mode - **1 ,1**, 2, 3, 4, 7, 8, 9 - find the double

__Square Roots__

2. What is the square root of 35? (No Calculators!) - find the perfect squares above it and below it
 * 25 / 35 / 36**

-the perfect square on the left is the whole number -subtract 36 and 25 to get the denominator 5 ?/11** -subtract 35 and 25 to get the numerator 5 10/11**
 * 5 ?/?**
 * 36 - 25 = 11
 * 35 - 25 = 10

__Percents__

3. Is taking 10% off a given item and then an additional 40% off the reduced price the same as taking 50% off the original price? Why or why not. No, it is not the same.

Example: Sweater = **$60** 50% - **100/100 = 1 x 50 = 50 - 60 - 50 = $10** 10% + an additional 40% - **100/100 = 1x10 = 10** - 50/100 = 0.5 x 40 = $20**
 * - 60 - 10 = $50

__Ratio Porportion__

4.A child can run 5 blocks in 2 minutes. How long does it take the child run 8 blocks, at the same speed?
 * Use a **fractions** to solve this*

blocks/minutes = 5/2 = 8/?= 3 minutes and 20 seconds - divide 8 and 5 8/5 = 1.6 - multiply 1.6 and 2 1.6 x 2 = 3.2

5. Jacob has a record of winning 2 boxing matches for every 5 he loses. If he had 49 matches during the last year, how many did he win?
 * Use a ratio table to solve this on (**Part | Total or X | K | Y chart**)*

2 | 5 19.6 | 49**
 * wins/ loses = 2/5 = ? = 20/49**
 * P | T

- divide 49 and 5 -multiply 2 and 9.8 - round up
 * 49/5 = 9.8**