Variables and Expressions 1

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A local hospital is holding
a raffle as a fundraiser.
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The individual cost of
participating in the raffle
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is given by the following
expression-- 5t plus 3,
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or 5 times t plus 3,
where t represents
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the number of tickets
someone purchases.
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Evaluate the expression when t
is equal to 1, t is equal to 8,
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and t is equal to 10.
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So let's first
take the situation
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where t is equal to 1.
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Then this expression
right over here
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becomes-- and I'll use that
same color-- becomes 5 times 1.
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5 times 1 plus 3.
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5 times 1 plus 3, and we know
from order of operations,
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you do the multiplication
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So this will be 5
times 1 is 5 plus 3,
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and then this is
clearly equal to 8.
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Now let's do it when
t is equal to 8.
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So when t is equal to 8,
this expression becomes--
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and I'll do the same colors
again-- 5 times 8 plus 3.
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Same color of green.
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And once again, 5 times 8 is
40, and then we have the plus 3,
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there so this is equal to 43.
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And so we have the
last situation,
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with t is equal to 10.
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I'll do that in blue.
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So we have 5 times 10.
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So 5t is 5 times 10.
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Instead of a t, put a 10 there.
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5 times 10 plus 3.
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That's a slightly
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but I think you get the idea.
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5 times 10 is 50.
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We do 50, and then we're going
to have to add 3 to that,
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and that is equal to 53.
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And we're done.
Title:
Variables and Expressions 1
Description:

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Video Language:
English
Duration:
02:00
 dhbot edited English subtitles for Variables and Expressions 1 raji.krithi added a translation

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