ShmoopTube
Where Monty Python meets your 10th grade teacher.
Search Thousands of Shmoop Videos
Playlist PSAT® Math 45 videos
PSAT 1.1 Math Narrative Walkthrough. In how many hours will James and Steve meet?
PSAT 1.2 Math Narrative Walkthrough. Which graph represents the equation?
PSAT 1.3 Math Narrative Walkthrough. How many full packages of secret ingredient does the company have to buy to make one 50-gallon batch?
PSAT 1.30 Math Diagnostic 177 Views
Share It!
Description:
PSAT 1.30 Math Diagnostic. How long would it take Wanda to finish a 2000-m race?
Transcript
- 00:00
Thank you We sneak and here's your shmoop too sure
- 00:05
brought to you by the fifty meter dash for when
- 00:07
you wanted to note a really long break in a
- 00:10
sentence Wanda runs the fifty meter dash in nine seconds
- 00:16
Her mile paces approximately three point two meters per second
Full Transcript
- 00:20
If one two ran at her fifty meter pays for
- 00:22
the first five hundred meters and the remainder of the
- 00:24
race at her slower a mile paste Approximately how long
- 00:28
would it take wanda to finish a two thousand meter
- 00:31
race And here the potential answers meters and miles and
- 00:36
it's like oil and water right Well sounds like wanda
- 00:39
is lacking either in energy or motivation As the race
- 00:42
goes on maybe make her wear meat shorts and release
- 00:46
a hungry cheetah somewhere around fifty meter mark that helps
- 00:48
speed her up and make for some good entertainment until
- 00:52
the mauling began All right we take it back That's
- 00:54
Not the best idea All right So for five hundred
- 00:56
meters one fourth of the race wanda is booking along
- 01:00
at her fifty meter paste That which she can go
- 01:03
fifty meters in nine seconds for the other fifteen hundred
- 01:06
meters She slows to her mile pace of three point
- 01:09
two meters per second And this question wants to know
- 01:12
how much total time it'd take her to go Wire
- 01:14
the wire All right well let's just break it up
- 01:17
Almost as if this were to separate races and then
- 01:19
we'll just add the two times together Well if one
- 01:22
goes fifty meters in nine seconds then how long will
- 01:25
it take her to go Five hundred meters while five
- 01:27
hundred is fifty times ten So we'll have to multiply
- 01:30
her time by ten as well and looks like it
- 01:33
would take her in ninety seconds to go the first
- 01:35
five hundred meters then for the latter part of the
- 01:38
race No no not the latter part of the race
- 01:40
That would be too cruel Kind of funny He slows
- 01:43
to three point two meters per second So we're gonna
- 01:46
want to know how many times Three point two goes
- 01:48
into fifteen hundred Well fifteen hundred divided by three point
- 01:51
two is about four hundred sixty eight point seven Five
- 01:55
So that's how many seconds it will take her to
- 01:58
go the last fifteen hundred meters adding them together We
- 02:01
take ninety seconds Plus four hundred sixty eight Yeah Change
- 02:05
seconds to get five hundred fifty eight point seven six
- 02:09
seconds Which doesn't look anything like any of our answer
- 02:12
choices Oh yeah we're supposed to convert that into minutes
- 02:16
Celia's Well there are sixty seconds in a minute so
- 02:18
let's divide five fifty eight and changed by sixty and
- 02:21
we get nine minutes with a remainder of around nineteen
- 02:24
seconds which is option b We're glad we decided to
- 02:27
replace the meat shorts with carrot pants and the cheetah
- 02:30
with bunny rabbits It's still added an unforeseen challenge but
- 02:34
at least wanda will live to tell the tale Ah
Related Videos
PSAT 1.3 Math Narrative Walkthrough. How many full packages of secret ingredient does the company have to buy to make one 50-gallon batch?
PSAT 1.1 Reading Diagnostic. The main purpose of the first two paragraphs is to...what?
PSAT 2.2 Reading Diagnostic. What is the main rhetorical effect of this phrase in the second paragraph?
PSAT 1.3 Writing Diagnostic. To make the paragraph most logical, sentence 2 in the second paragraph should be placed...where?
PSAT 1.4 Writing Diagnostic. Which choice most effectively combines the two sentences in the underlined portion?