- 5 hours to travel 360 kilometers is about 72 km/h. Kilometers/Hour= 360/5 = X/hour. I cross multiplied diagonally and got this: X*5 = 360x1. I got rid of 5 by dividing it by 5 and I also did the same thing to the right side. It looked like this: X*5/5 = 360x1/5. X = 360x1/5. X=360/5 and then I finally got the answer. X = 72 kilometers/hour.
- Emma saves 28 cents of every dollar that she earns. Emma earned $75 last week. How much money did Emma save last week? Emma saved $21.00 last week. Cents/$ = 0.28/$1.00 = X/$75.00. I cross multiplied diagonally and it looked like this: X *$1.00= $0.28x$75.00. To get rid of the dollar beside the variable, I divided both sides by 1/dollar. X*$1.00/$1.00 = $0.28x75/$1.00. So now I'm left with X= $0.28x$75.00/$1.00. X= $21.00/$1.00 is equal to $21.00.
What are the three ways you can prove that equivalent ratio statements are true?3/4 = 12/16 or 4/9 = 16/32 <--- (This is false because it should be 16/36)
Converting to lowest term-
Multiplying both the numerator and the denominator with the same number (I'm talking about 3/4 and 4/9 in this case to be multiplied by 4).
- Does this seem fair? No, it isn't.
- With what you know about proportion look and read what is in the image above. Does it seem just and fair? No.
- Why have you made this choice? I think it's unfair because the homeless man stole $100.00 from the bank but surrendered voluntarily unlike the CEO of the Mortgage who stole $3 billion from his work and is only sentenced 3 years of being in jail. Using ratio and proportion, the poor man's life was judged to be worth only $6.67 per year ($100.00/15 years) while the rich man's life was worth $1 billion per year ($3 billion/3 years).
- What would you have done if you were the judge? I would've punished the CEO and the people that were part of it more by sentencing them 7 years instead of 3 and sentence the homeless man for only 1 year of jail time instead of 15 years because it's still wrong to steal.
How tall is the tree on the right side of the 5'6'' boy?
I measured the boy with a ruler and got 50 mm and I also measured the tree and got 160 mm + 10 mm because it went off the picture. The boy is approximately 5'6'' tall but I converted 6 inches into feet and I got 5 6/12 or 5.5 feet tall. Here's what I did.
The tree is approximately 18.7 feet tall.