ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos

PSAT 1.40 Math Diagnostic 170 Views


Share It!


Description:

PSAT 1.40 Math Diagnostic. According to the equation, which of the following statements is accurate?


Transcript

00:00

Sorry And here's your smoke du jour Brought to you

00:04

by swimming pools There's a small rundown public school we

00:07

go to sometimes but it's kind of a dive splash

00:12

the local pool love opens with a thousand members at

00:15

the beginning of the summer The number of members m

00:18

after tea months can be calculated with the equation and

00:21

nichols a thousand times point nine five to the t

00:23

kaur according to the equation which of the following statements

00:26

is accurate and hear the potential answer all right are

00:31

under increasing or decreasing that's they face Okay we'll splash

00:36

What a clever name for a pool club was like

00:38

water taken Anyway they must be doing something right because

00:42

they got a thousand members to sign up right out

00:44

of the gate Or you know right off the starting

00:46

block now were given an equation that expresses how many

00:49

members there are after a certain amount of time where

00:52

t represents time and equals the number of months Right

00:56

So it's team months all the answer choices look pretty

00:58

similar So the only thing we need to do is

01:00

figure out whether membership is going up or down and

01:02

by what percentage Why they signed up or why they

01:05

left is well none of our business So let's Plug

01:08

in a one for tea and see what happens Well

01:11

point nine five two the first power is just point

01:13

nine five it doesn't change and once we multiply that

01:16

by a thousand we get nine hundred fifty which is

01:18

a decrease of fifty members Find out how much of

01:21

a percent decrease that is We simply take fifty and

01:24

divided by the thousand we started with and we get

01:27

point Oh five or five percent sure appears to be

01:30

option c to us But let's try plugging it in

01:32

one more to make sure what's membership gonna look like

01:35

after two months while we can plug into for tea

01:38

Point nine five square in his point nine o two

01:40

five which one multiplied by a thousand equals nine hundred

01:43

two and a half that's forty seven and a half

01:45

fewer members than there were the month before And each

01:48

We're a little concerned about that half member How sharp

01:51

are those diving boards Well if we take forty seven

01:53

point five and we divide that by the number of

01:55

members there were at the end of one month nine

01:58

fifty We had point oh five or five percent once

02:01

again so yeah option c definitely got it right We'll

02:04

tell you who doesn't have it right This pool club

02:07

Apparently we're not sure what they're doing to drive people

02:10

away in such large numbers but it might have something

02:12

to do with their idea to introduce marine life and 00:02:14.94 --> [endTime] do some of the pools

Up Next

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?

Related Videos

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?