1) Homework:**Divison 1 and 2: Proportion Word Problems and Scale Factors**
2) Post A Response: (Div 2. try this as well)**The light brown rectangle in the map below represents the zoning for a new provincial park. Advocates of protected parkland have been protesting against the small size of the park. Their voices have been heard and the government has decided to increase the size of the park. The new size on the map will be 25cm x 50cm.****What scale factor was used increase the size of the park? Explain how you know.****What will the actual dimensions of the park be in kilometres?****How many square kilometres will be parkland now that the size has been increased? (area)****How much more park area as been added to the original plan now that the park size has been scaled up?**
47 Comments
Kaya
2/6/2018 04:18:13 pm
FIRSTTTTT
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ray
2/6/2018 04:18:48 pm
SECONDD
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Jordan
2/6/2018 04:19:51 pm
3rd
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ray
2/6/2018 04:20:50 pm
2.5 is the scale factor
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Amairis
2/6/2018 04:20:57 pm
Forth
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ray
2/6/2018 04:25:00 pm
dimensions for the old park: 500 000 width km, 1 000 000 length km.
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ray
2/6/2018 04:27:04 pm
3125000000000 square kilometre's
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ray
2/6/2018 04:28:19 pm
3125000000000-50000000000=3075000000000
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ray
2/6/2018 04:29:07 pm
3075000000000 is the amount of square kilometers increased from the previous park area
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ray
2/6/2018 04:31:22 pm
if i got anything wrong, let me know because im in a hurry
Kaya
2/6/2018 04:36:59 pm
Try putting commas between your zeros so that it's easier to keep track of.
Lainey
2/6/2018 06:18:48 pm
Dude too many comments! Maybe try putting your explanation together and send it as one?
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ray
2/6/2018 04:30:17 pm
oh yea, whats the link to mr.hongs website btw
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Tasia
2/6/2018 04:45:56 pm
Just search Mr. Hong's class website on google.
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Kaya
2/6/2018 04:32:55 pm
The scale factor of the park is 2.5? I don't think this is right, but the dimensions of the park were multiplied by 2.5... Is that the scale factor? I divided 25 by 10 to get 2.5 and checked by multiplying 20 by 2.5 and got 50. The actual dimensions of the park are 1,250,000 km by 2,500,000 km (?) That's pretty big....The square area of the park will be 3,125,000,000,000 km. 3,075,000,000,000 km2 has been added to the park.
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ray
2/6/2018 04:34:09 pm
noice, i think thats right
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ray
2/6/2018 04:34:35 pm
honestly, i cant keep track of the zeros so yeah
Amairis
2/6/2018 04:37:10 pm
So many zerooooo's!!!!!
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Tasia
2/6/2018 04:59:21 pm
your math skills are NOT terrible!!!
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Tasia
2/6/2018 04:58:46 pm
The scale factor was increased by 2.5. I know this because 10 x 2.5 = 25 and 20 x 2.5 = 50.
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Jordan
2/6/2018 05:07:53 pm
The scale tractor is 2.5 because 10×25 then 20×2.5 which is 50. The new parks dimension is 1,250,000km and 2,500,000. 3,075,000,000,000 km2 was added. So the square area of the park will be 3,125,000,000,000 km
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Aaron
2/6/2018 05:50:06 pm
Lol tractor...
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Roshin
2/6/2018 05:23:54 pm
3,125,000,000,000 km = Answer
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Lawrence
2/6/2018 05:37:32 pm
The scale in the picture will be increased by 2.5. We know that 10 multiplied by 2.5 is 25 so that means 20 multiplied by 2.5 is going to be 50. If I'm correct, the new size of the park is: 3,125,000,000,000 KM
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Aaron
2/6/2018 06:03:51 pm
2.5 is the scale factor. The reason is because the difference between 10:20 and 25:50 is multiply 2.5. 10x2.5=25 and 20x2.5=50.
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Eric N
2/6/2018 06:06:54 pm
IDU
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Daniel
2/6/2018 09:18:31 pm
Use a period ->.
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David
2/6/2018 06:25:58 pm
The scale factor of the provincial park is 2.5. How do we know?
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Aaron
2/6/2018 06:32:23 pm
500 000 x 1000 000 old park
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Aaron
2/6/2018 06:49:26 pm
=5 00 000 000 000
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Lainey
2/6/2018 06:40:29 pm
HOW IS THE PARK SMALL? OMG WHAT ARE YOU DOING IN THAT PARK? *sound of wall breaking and sobbing*
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Lainey
2/6/2018 07:14:20 pm
Original size: 500 000 x 1 000 000 = 500 000 000 000km
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Aaron
2/6/2018 06:41:16 pm
New park, 1 250 000 x 2 500 000= 3 125 000 000 000.
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Aaron
2/6/2018 06:47:20 pm
Wait that's bigger than the Earth itself. Did I do it wrong? Or is it some other planet...
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Aaron
2/6/2018 06:47:39 pm
Waaaaay bigger.
Coco
2/6/2018 06:43:13 pm
The scale factor is 2.5, that is because
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Aaron
2/6/2018 06:45:09 pm
The difference of the two parks is 3 075 000 000.
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Miikka
2/6/2018 07:21:54 pm
The scale factor is 2.5 because 10 times 2.5= 25 and 20 times 2.5=50
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matt
2/6/2018 07:31:13 pm
the scale factor is 2.5
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Karman
2/6/2018 08:23:23 pm
The scale factor is 2.5, therefor we can head on to the next part of this question. (10 x 2.5 = 25, 20 x 2.5 = 50.)
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Karman
2/6/2018 08:23:51 pm
Therefore*
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Tasia
2/6/2018 09:10:55 pm
Karmen the only person from div.2 that actually did it. Lol
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Daniel
2/6/2018 09:17:07 pm
The scale factor is 2.5, actual dimension for the park is 1 500,000x25,000,000. There will be 3,075,000,000,000km added to the park, unless the government is too cheap and doesn’t do it.
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Emily
2/6/2018 09:18:14 pm
1.) 10/20=25/50
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Emily
2/6/2018 09:18:59 pm
The scale factor increase of the triangles is 2 units.
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Eric. Z
2/6/2018 09:50:03 pm
1) 10:20=25:50=1:2=1/2
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Andrew
2/7/2018 08:26:37 am
The scale factor is 2.5
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