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The Number System Videos 5 videos

ACT Aspire Math: Finding the Prime Factorization of 120
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Which of the following is the prime factorization of 120?

ACT Aspire Math: Ordering Numbers from Least to Greatest
7 Views

Which of the following lists of numbers is ordered from least on the left to greatest on the right?

ACT Aspire Math: Knowing (and Using) the Rules of Divisibility
13 Views

Place one of the following numbers into the ones digit of the number 428, while moving the other digits so that the 4 is in the position of the tho...

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ACT Aspire Math: Placing the Solution to an Expression on a Number Line 2 Views


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Description:

Consider the equation .

Indicate the location of x on the number line shown. Assume that all points on the number line are equidistant.


Transcript

00:03

Okay Aspiring math people Next up A drill for you

00:06

Here we go Consider the equation Three fourths minus one

00:09

twelfth equals acts Indicates location of exxon The number line

00:13

shown Assume that all points on the number line are

00:15

equal distant All right well let's think about this first

00:22

step here's just solve the expression in the problem the

00:24

lowest common denominator here is twelve right so it's going

00:28

to be nine twelve minus one twelve and that gets

00:32

us eight twelves and eight twelves is what is that

00:35

we can take out fours from there we've got two

00:37

fours up here and three fours down there so it's

00:40

two thirds all right so that's our most reduced number

00:44

here now where do we put it on this number

00:46

line equal distant thing well all this is great and

00:49

everything but we've got to find out what the letter

00:51

something the number line actually represent their seven total marks

00:54

here counting five letters and the zero and the one

00:57

there which gives us six inter spaces yeah that would

01:00

be the distance between zero and a right there for

01:03

example what were told that the points are equal distance

01:06

so each inter space represents one sixth so why don't

01:10

we just rewrite everything with our fancy new actual numbers

01:14

instead of just hash marks but wait none of these

01:17

looks like two thirds luckily fractions are malleable and we

01:21

confined an equivalent fraction that had six in the denominator

01:24

We've got four six right We just multiplied by two

01:26

over to for the two thirds Ever get a six

01:28

and a bottom wealth four six is located right here

01:32

One two three four It's the same tick Mark is

01:34

the 1 labeled d in the original diagram So that's 00:01:38.311 --> [endTime] our answer Yeah Answers ia's in We're done

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