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FOOD At Northside Donuts, regular donuts are $1 each and fancy donuts are $1.30 each. Jenifer bought two dozen donuts for $28.80. How many regular and fancy donuts did Jenifer buy?

Sagot :

Answer:

[tex]9\frac{1}{3}[/tex] regular donut and [tex]14 \frac{2}{3}[/tex] fancy donut

Step-by-step explanation:

if you set up r as number of regular donut and f as number of fancy donut, you can set 2 equations

equation 1: r + f = 24

where 24 is the number of donut should add up or 2 dozens

equation 2: 1r + 1.3f = 28.80

where left sides reflect the prize of each type of donut equal to 28.80

solving by substracting equation 2 to equation 1 you'll get 0.3f = 4.40, so f = [tex]14 \frac{2}{3}[/tex] fancy donut

r= 24-f so r = [tex]9\frac{1}{3}[/tex] regular donut

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