__Proportion Problems__

1) If 3 twinkies cost $1, how much is it for 15 twinkies

The number of twinkies for $15 is

__5__.

2) An amusement park line is moving about 4 feet every 15 minutes. At this rate, approximately how long will it take for person at the back of the 50 foot line to reach the front of the line.

__187. 5__min is approximately how long it would take a person at the back of a 50 foot line to get to the font.

My question for you:

A diagram measuring 20cm long is reduced on a copy machine to 15cm long. If the width of the original copy is 16cm what is the width of the reduced copy.

The answer to your question is 12 cm wide. I solved this by doing cross products.

ReplyDeleteBtw I like the way you showed your work by using Tang :)

Let x be the reduced copy for the 16 cm copy

ReplyDeleteSteps word ratio, ratio table, proportion, find x

Model

Original Copy | Reduced Copy

20 cm 15 cm

16 cm x

Work

20 * x = 15 * 16

20x = 240

/20 /20

x = 12

The width of the reduced copy is 12 cm.

Answer: 12 cm is width for a reduced copy. I solved this by using cross products!

ReplyDeleteI love how the flavor of the twinkies you put in the picture is vanilla! :) ha

ReplyDelete...ha woops! *haha

ReplyDeleteI like how instead of taking a picture of your work, you just used paint or something ..! :)

ReplyDelete