ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


PSAT Math Diagnostic Videos 41 videos

PSAT 1.1 Math Diagnostic
312 Views

PSAT 1.1 Math Diagnostic. If a rabbit consumes 3 meals a day, how many grams of food will a rabbit consume in 7 days?

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?

See All

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

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

Secret Ingredients
391 Views

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
1006 Views

PSAT 1.1 Reading Diagnostic. The main purpose of the first two paragraphs is to...what?

PSAT 2.2 Reading Diagnostic
379 Views

PSAT 2.2 Reading Diagnostic. What is the main rhetorical effect of this phrase in the second paragraph?

PSAT 1.3 Writing Diagnostic
282 Views

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
239 Views

PSAT 1.4 Writing Diagnostic. Which choice most effectively combines the two sentences in the underlined portion?