On practice problem one, why did it ask about the width of the rectangle when it should've asked the length. Clearly the width was the same as a centimeter, and the length was shorter. When I answered shorter it said correct.

The width is on the bottom, the length is on the side, that is why it is width

Units are specific sections or amounts of things (such as time, length, volume, etc.) that we use for measurement. Some examples of units are seconds, centimetres, and millilitres.

How many inches was Raj's pencil?

The whole thing here is that we don't know. If Raj had a larger pencil, the desk would be less than 8 pencils tall. If Raj sharpened his pencil a bit, the desk would be more than 8 pencils tall. We can't know exactly how tall Raj's pencil was in our normal units without knowing the height of something else in normal units, like the pen or the desk. In terms of the pen's length, Raj's pencil is 9/8 of the pen.

It asks how high a desk is and Raj is 8 pencils long and Lynn is 9 and it says Raj is longer?

Since Raj measures the height of a desk with his pencil, and finds out the desk is 8 pencils tall, then Lynn measures the SAME desk with her pen, and finds it is 9 pens high, Lynn's pen must be shorter than Raj's pencil. Therefore, Raj's pencil is longer than Lynn's pen.

For the last question if Lynn's desk was 9 pens long then why was Raj's desk longer?

They're measuring the same desk with different materials. Therefore, since Raj's pencil took only 8, it means that the pencil was longer.

is a cm longer than a inch

A centimeter is shorter than an inch. In fact, you would need about 2.54 Centimeters to equal 1 inch.

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Measuring lengths with different units

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Use different units to measure the same object.

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James Wiggins
Posted 5 years ago. Direct link to James Wiggins's post “On practice problem one, ...”
On practice problem one, why did it ask about the width of the rectangle when it should've asked the length. Clearly the width was the same as a centimeter, and the length was shorter. When I answered shorter it said correct.
Button navigates to signup pageComment on James Wiggins's post “On practice problem one, ...”
(114 votes)
Answer
- eric.lett
  Posted 5 years ago. Direct link to eric.lett's post “The width is on the botto...”
  The width is on the bottom, the length is on the side, that is why it is width
  Comment on eric.lett's post “The width is on the botto...”
  (44 votes)
Brandon Castillo
Posted 4 years ago. Direct link to Brandon Castillo's post “How many inches was Raj's...”
How many inches was Raj's pencil?
(2 votes)
- Hecretary Bird
  Posted 4 years ago. Direct link to Hecretary Bird's post “The whole thing here is t...”
  The whole thing here is that we don't know. If Raj had a larger pencil, the desk would be less than 8 pencils tall. If Raj sharpened his pencil a bit, the desk would be more than 8 pencils tall. We can't know exactly how tall Raj's pencil was in our normal units without knowing the height of something else in normal units, like the pen or the desk. In terms of the pen's length, Raj's pencil is 9/8 of the pen.
  (6 votes)
hollingsworth.lucas
Posted 4 years ago. Direct link to hollingsworth.lucas's post “It asks how high a desk i...”
It asks how high a desk is and Raj is 8 pencils long and Lynn is 9 and it says Raj is longer?
(2 votes)
- Brennan Caverhill
  Posted 4 years ago. Direct link to Brennan Caverhill's post “Since Raj measures the he...”
  Since Raj measures the height of a desk with his pencil, and finds out the desk is 8 pencils tall, then Lynn measures the SAME desk with her pen, and finds it is 9 pens high, Lynn's pen must be shorter than Raj's pencil. Therefore, Raj's pencil is longer than Lynn's pen.
  (3 votes)
990025763
Posted 7 years ago. Direct link to 990025763's post “what are units?”
what are units?
Comment on 990025763's post “what are units?”
(5 votes)
- kelsey.driediger
  Posted 7 years ago. Direct link to kelsey.driediger's post “Units are specific sectio...”
  Units are specific sections or amounts of things (such as time, length, volume, etc.) that we use for measurement. Some examples of units are seconds, centimetres, and millilitres.
  Comment on kelsey.driediger's post “Units are specific sectio...”
  (13 votes)
Fluffy (Hafsa M)
Posted a year ago. Direct link to Fluffy (Hafsa M)'s post “For the last question if ...”
For the last question if Lynn's desk was 9 pens long then why was Raj's desk longer?
(2 votes)
- SP
  Posted a year ago. Direct link to SP's post “They're measuring the sam...”
  They're measuring the same desk with different materials. Therefore, since Raj's pencil took only 8, it means that the pencil was longer.
  (2 votes)
Arhaan Jafri
Posted 7 years ago. Direct link to Arhaan Jafri's post “Why is cm. shorter then i...”
Why is cm. shorter then in.? Who invented it?
Comment on Arhaan Jafri's post “Why is cm. shorter then i...”
(2 votes)
- Marshall Hamon
  Posted 7 years ago. Direct link to Marshall Hamon's post “because cm = 1/100 of m a...”
  because cm = 1/100 of m and an inch is equal to 1/12 of a foot and one meter is about one yard and one yard is 3ft
  (1 vote)
SADLEJAM000
Posted 6 years ago. Direct link to SADLEJAM000's post “is a cm longer than a inc...”
is a cm longer than a inch
Comment on SADLEJAM000's post “is a cm longer than a inc...”
(0 votes)
- Anthony Fritz
  Posted 6 years ago. Direct link to Anthony Fritz's post “A centimeter is shorter t...”
  A centimeter is shorter than an inch. In fact, you would need about 2.54 Centimeters to equal 1 inch.
  (3 votes)
Daimara Torres Diaz
Posted 2 days ago. Direct link to Daimara Torres Diaz's post “why do you keep giving m...”
why do you keep giving me stupid child questions im in 8th grade come on now
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(1 vote)
Answer
Wildcraft78
Posted 5 years ago. Direct link to Wildcraft78's post “does anyone get problem o...”
does anyone get problem one?
(0 votes)
- Burton Gamble
  Posted 5 years ago. Direct link to Burton Gamble's post “Measuring the fence with ...”
  Measuring the fence with squirrels and then with ponies is showing that the same object (the fence) can have different measurements when the units used to measure it are of different sizes. Kinda like how we use inches and feet, or meters and centimeters to measure things. In this case the fence is either 10 squirrels or 5 ponies long. So we also know that in this case, each pony is 2 squirrels long.
  Comment on Burton Gamble's post “Measuring the fence with ...”
  (1 vote)
Raj Sinha
Posted 4 years ago. Direct link to Raj Sinha's post “what is a width?”
what is a width?
(0 votes)
- Ian Pulizzotto
  Posted 4 years ago. Direct link to Ian Pulizzotto's post “The width measures how wi...”
  The width measures how wide an object is. Usually, the width of an object is considered smaller than its length.
  (1 vote)

Early math review

Course: Early math review > Unit 7

Measuring lengths with different units

Measuring lengths with different units

Practice problem 1

Practice problem 2

Challenge question

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