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jeka94
3 years ago
9

Yesterday, Nancy's lunch cost $9.80, and she left a $1.47 tip. Today, Nancy's lunch cost $12.60. If she tips at the same rate th

at she did yesterday, how much of a tip should Nancy leave?
Mathematics
2 answers:
Semmy [17]3 years ago
8 0

Answer:

$1.47/ $9.80 = 0.15

15% rate

$12.60 * 15% = $1.89

Step-by-step explanation:

If her lunch <em>cost</em> $9.80 and she left a $1.47 <em>tip</em>, if we do <u>$1.47/ $9.80 = 0.15. </u> So 15% is our percent of tip.

(That is the <em>cost</em> of the first day and the <em>tip</em> of the second day divided.) If we want to find out how much her next<em> tip</em> should be, we have to multiply the percent of tip (15%) with the next days <em>cost </em>($12.60.) So, <u>$12.60 * 15%= $1.89 </u>

Sedbober [7]3 years ago
5 0
$1.47 = $9.80P
$1.47/$9.80 = $9.80P/$9.80
P = 0.15
The percent of tip is 15%
Today’s Lunch $12.60 x 15% = $12.60 x 0.15 = $1.89
She leaves $1.89 tip.
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