Josef's BOB2
- I need to do my HomeWork
- I also need to read the questions carefully so i don't forget any important details
This is a place for the community of learners in Room 8-73 to learn and enjoy math. It is an extension of the classroom making it accessible 24 hours a day, 7 days a week.
What I Learned and Need to Work on
I sometimes need to remember stuff, because
every time we learn something new, I sometimes forget.
I learned how to make ratios in lowest terms easier
ways
I will improve by paying more attention and
making sure if I'm doing something right or wrong
What I Learned And What I Need To Work On
Shades of green to shades of pink ( G:P ) 3/2 , 1.5 , 150 %
Equivalent Ratios
Equivalent ratios are two ratios that have the same value when simplified. For exaple, 3:12 is the ratio of green colored crayons to the total number of crayons. 1:4 is equivalent to 3:12 because 3 and 12 and both divisible by 3. Divide both 3 and 12 by 3, and you get 1:4.
Questions
1) Basing on the picture above, make a ratio of the number of vowels to the number of consonants. Express it in lowest terms.
2) How do you know if you can or cannot simplify a ratio ?
3) In lowest terms, make a ratio of the number of blue crayons to the total number of crayons.
BOB2
The mistakes I did on the test were mostly on the multiple choice questions. I just didn't put the ratio in the right order. The answer is supposed to be 3:7, but instead I chose 7:3. Another mistake I did was that I got the wrong answer for finding the percent.
4. Four students are running for student council president. Of 30 students polled, 15 chose Mikw, 3 chose Patricia, 6 chose Brian, and the rest chose Karen. What is the ratio of votes for girls to votes for boys in the student council election? express the ratio in lowest terms.
a. 3:7 b. 7:3 c. 15;6 d. 21:9
Votes for girls: votes for boys
9:21
9/21 divide by 3/3
=3/7 = 3:7
Part To Part Ratios:
Blue to Green- 9:2
Orange to Green- 7:2
Blue Vowels To Blue Constants - 5:4
Part to Total Ratios:
Blue to Total -9:18
Orange to Total-7:18
Three Part Ratio
Blue to Orange to Green - 9:7:2
Ratio Notation, Fraction, Decimal, and Percent
Punctuation to Constants
P/C- 1/8, 0.125:1, 12.5%:100%
Part to part
-yellow to white (2:1)
-blue to green (4:2)
-brown to orange (3:2)
Part to total ratio
-white to total (1:22)
-orange to total (3:22)
Three part ratio
-grey to yellow to white (1:2:1)
-green to blue to brown (2:4:3)
Ratio notation, fraction, decimal, and percent
-yellow to blue (2:4, 2/4, 0.5, 50%)
Equivalent ratios
-yellow to blue (2:4)
-2:4 is equivalent to 4:8, 5:10, 6:12, etc.
You can find equivalent ratios by multiplying or dividing both sides by the same number. It is similar to finding equivalent fractions.
Questions
What is a part to whole ratio?
How do you make a 3 part ratio?
What is an equivalent fraction for 2:3?
PART TO PART RATIO:
Green:Blue 6:1
Blue:Red 1:10
Yellow:Blue 6:1
PART TO WHOLE RATIO:
Red:Total 10:23
Blue:Total1:23
3 PART RATIO:
Green:Blue:Yellow 6:1:6
Total:Letters:Green 23:7:6
Here is the ratio that I picked to show a ratio notation, fraction, decimal, percent. Blue:Red. Here is how I did it:
Ratio Notation: 1:10
Fraction:1/10
Decimal: 0.10
Percent:10%
I got the fraction by adding up the numbers of blue m&m's and red m&m's. I got the decimal by dividing the fraction and I got the percent by multiplying the decimal by 100.
Making An Equivalent Ratios
blue to red, 1:10 2:20 3:30 4:40 5:50. These are all equivalent fractions. When your trying to make an equivalent fraction you have to know that if you do something to one side you do it to the other. So, 1:10 is equivalent to 2:20 because you multiplied 1 by 2 and so what you do on one side you do it on the other by doing that 10 times 2 equals 20. So the ratio is 2:20.
3 QUESTIONS
1: If you make a ratio of blue:total. What would be the fraction decimal and the percentage be and How did you do it?
2: What would the equivalent ratio look like if it was 6:1?
3: What if there was 3 more blue then red? What would the fraction decimal and percentage look like?
This is my Bob blog for extra marks .
Well part is about my test , to be honest im kind of proud of my mark but i know there is still room for improvement .
Well my mistakes on my test mostly had to do with simplifying. Example
18:27 , i put 6:9 and it said to express in lowest terms but i didn't put it in lowest terms , but the answer would of been 2:3.
and there was another one about the cards in the deck. red cards to whole deck and i answered 2:4 , i forgot to simplify and 1:2 was there. But in my defense it did not say express lowest terms but I guess it was my fault cause we always have to simplify.
4. Part to Part ratios:
Blue:green (1:6) yellow:green (4:6) yellow:blue (4:1)
Part to total ratios:
yellow:total (4:18) green:total (6:18)
Three part ratios:
Blue:green:yellow (1:6:4) Blue:green:total (1:6:18)
5. Show one ratio as a ratio notation, fraction, decimal and percent form.
Blue:green ratio notation: (1:6) fraction: 1/6 decimal: 0.17 percent: 17%
6. Pick one ratio and show how to create equivalent raitos.
Green:total (1:3)
You can get equivalent raitos by dividing and multiplying the ratios.
7. Create 3 questions:
12:36 what ratio would this repersent?
2:9 what ratio would this repersent?
Give 3 diffrent ways to show blue:green.
Part 2:
A mistake I had on my test was that I didn't show all my work.
1. 84 kids got surveyed 18 chose A what is the percent (to one decimal place) of the group chose A.
2. In a student election Carol gets 50% of the votes. If there were 482 votes cast, how many votes did Carol get?
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