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Polynomials and Rational Expressions Videos 17 videos
Rational expressions are too complex... it's about time someone simplified them.
It's impressive that these expressions are able to stay so rational even when they're having operations performed on them.
Multiplying rational expressions is as easy as adding the exponents and simplifying. Ta da!
GED Math 2.1 Expressions and Equations 216 Views
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Description:
In this GED math problem, figure out what fraction of Serena's monthly income is spent on groceries
Transcript
- 00:00
Thank you We sneak in and here's your shmoop du
- 00:05
jour brought to you buy groceries We're not sure why
- 00:08
we always get so philosophical Only talk about him Maybe
- 00:11
it's Because they're in day cards Yeah we want Sorry
- 00:16
lisa Grocery cart All right Serena makes three grand a
Full Transcript
- 00:20
month If she spends g dollars on groceries each month
- 00:23
and what fraction of her monthly income does she spend
- 00:25
on groceries And here the potential answer is brought to
- 00:28
you by jenny craig Okay so we've got serena who
- 00:32
makes three grand a month So she's either a teacher
- 00:35
a tollbooth collector in california and this question wants to
- 00:38
know what fraction of her income she spends on groceries
- 00:42
were told to use g is the amount she spends
- 00:44
each month So really all this question is asking is
- 00:47
do we know how to take this information and express
- 00:50
it accurately to show what we're supposed to show To
- 00:53
wrap her head around this let's plug in a number
- 00:55
for a g Well let's say she spends three hundred
- 00:58
bucks a month on grocery Well we could go with
- 01:00
two hundred eighty four dollars ninety two cents but let's
- 01:02
Go easy on ourselves here If she spends three hundred
- 01:04
bucks a month on groceries and she makes three grand
- 01:07
a month well then she's spending ten percent of her
- 01:09
income right Well it makes sense but how do we
- 01:12
get that ten percent Well by putting three hundred our
- 01:15
g in a fraction over the three thousand when we
- 01:20
divide those two Numbers we arrive at point 1 or
- 01:22
ten percent So then our expression needs to be g
- 01:26
over three thousand answer a way Sure hope serena is
- 01:29
living rent free someplace Otherwise she may want to start
- 01:32
couponing coupons Dot com Find this website for couponing in 00:01:36.784 --> [endTime] the world Coupons dot com
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