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PSAT Math Diagnostic Videos 41 videos

PSAT 1.10 Math Diagnostic
256 Views

PSAT 1.10 Math Diagnostic. Which of the following is a factor of the expression?

PSAT 1.3 Math Diagnostic
245 Views

PSAT 1.3 Math Diagnostic. Which of the following most nearly represents the line of best fit?

PSAT 1.4 Math Diagnostic
216 Views

PSAT 1.4 Math Diagnostic. Which of the following conclusions is supported by the data in the graph?

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How Tall Would the Boxes Have to Be? 184 Views


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Description:

PSAT 1.7 Math Narrative Walkthrough. How tall would the boxes have to be?

Language:
English Language

Transcript

00:00

Thank you We sneak and here's your shmoop too sure

00:05

brought to you by cardboard boxes as the great kenny

00:08

rogers once said campbell you gotta know how to fold

00:13

some cardboard boxes It's old boxes dance mother gives him

00:18

a room clinton ultimatum and he ends up cleaning five

00:21

hundred cubic feet of junk out of his room If

00:23

dan wants to take out all the junk in on

00:26

ly five identical boxes that have a base of five

00:29

feet squared how tall would the boxes have to be

00:33

and hear the potential answers All right dan is awfully

00:37

particular about his garbage It's garbage Dan what do you

00:41

care What size boxes there in it's Not like you're

00:43

giving it away for christmas Laura are you all right

00:46

So there's five hundred cubic feet of garbage And dan

00:48

wants back all this trash away in five identical boxes

00:51

Well the math there is pretty easy Each box will

00:54

have to contain five hundred divided by five or one

00:56

hundred cubic feet of well crap hole up from here

00:59

though We'll need to use one of our trusty formulas

01:02

In this case the one for a rectangular prison A

01:05

box volume equals length times With times height equals lula

01:11

all right We're not seeing any length or with measurements

01:13

in the original problem but it does tell us that

01:16

the base has an area of five square feet and

01:19

we hopefully recognize that the area is the same as

01:22

length times width So there are two pieces of our

01:24

formula right there since all we're missing now is the

01:27

height we can plug in chuck by substituting one hundred

01:30

for the volume and five for length times With that

01:34

leaves us with one hundred equals five times the height

01:37

And when we divide both sides by five we get

01:40

h equals twenty answer Choice Be wow twenty foot tall

01:44

boxes Good luck getting your friendly sanitation workers to take

01:47

those away on garbage day Dan In fact you'll be

01:50

lucky if you still have a mailbox on thursday morning

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